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Fwd: [owps] One World Probability Seminar Thursday March 4, 2021
by Faggionato, Alessandra 03 Mar '21

03 Mar '21

Buongiorno vi giro l'annuncio del OWPS di domani che sarà molto relazionato al trasporto ottimale. Grazie Alessandra ---------- Forwarded message --------- Da: One World Probability <ow.probability(a)gmail.com> Date: mer 3 mar 2021 alle ore 14:06 Subject: [owps] One World Probability Seminar Thursday March 4, 2021 To: <owps(a)lists.bath.ac.uk> Tomorrow's speakers in the One World Probability Seminar are (Note: all times are in UTC. *Due to time changes, you should check what that translates to in your location*) ------------------------------------------------ (14:00-15:00 UTC) Speaker: Matthias Erbar (Bielefeld University) Title: Optimal Transport and Gradient Flows in Discrete or Non-Local Settings Abstract: Optimal transport has become a powerful tool in the analysis of particle systems and the associated evolution equations. In particular the description as steepest descent or gradient flow in the Wasserstein distance gives insights on their long-time or limiting behavior. Yet many situations of interest fall outside the scope of the classical optimal transport theory. In the talk I will try to give an overview of some recent developments concerning the construction of different geometries on the space of probability measures tailored to capture the specific features of a given system. I will focus in particular on particles systems on discrete spaces and on the collisional dynamics in the Boltzmann equation. (15:00-16:00 UTC) Speaker: Jan Maas (IST Austria) Title: Optimal Transport: from Discrete to Continuous Abstract: Many stochastic systems can be viewed as gradient flow ('steepest descent') in the space of probability measures, where the driving functional is a relative entropy and the dissipation mechanism is described by a dynamical optimal transport problem. In this talk we focus on these optimal transport problems and describe recent work on the limit passage from discrete to continuous. Surprisingly, it turns out that discrete transport metrics may fail to converge to the expected limit, even when the associated gradient flows converge. We will illustrate this phenomenon in examples, discuss a geometric criterion for convergence, and present a recent homogenisation result. This talk is based on joint works with Matthias Erbar, Nicola Gigli, Peter Gladbach, Eva Kopfer, and Lorenzo Portinale. ------------------------------------------------ The zoom link will appear the day before on the OWPS website: https://www.owprobability.org/one-world-probability-seminar <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.owpro…> It can also be directly accessed through the link below: https://uniroma1.zoom.us/j/85095168711?pwd=dGx2dnNySUZQNm40ZC9aWlJTaXZTZz09 <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Funiroma1.…> Meeting-ID: 850 9516 8711 Passcode: 244220 Please feel free to circulate this email. We hope to see you all tomorrow! One World Probability Team -- ************************************************* Prof. Alessandra Faggionato http://www1.mat.uniroma1.it/~faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 5, Phone (0039) 06 49913252 *************************************************

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Statistics and Probability Seminars @University of Nottingham: Karthik Bharath (3pm Italian time)
by Fabrizio Leisen 03 Mar '21

03 Mar '21

Con preghiera di diffusione. *Italian time: 15:00* Cordiali Saluti, Fabrizio Dear All, the Statistics and Probability group at the University of Nottingham organize a series of internal seminars which will be available to anyone interested, even outside the University of Nottingham. Our next speaker is Karthik Bharath. Seminar date and time: *4**th* * of March at 2pm. * Below you can find the Abstract and Title. Furthermore, you can find the Teams link to join the seminar. Best Wishes, Fabrizio Leisen Professor of Statistics University of Nottingham School of Mathematical Sciences University Park, Nottingham, NG7 2RD, UK http://sites.google.com/site/fabrizioleisen/ You are cordially invited to the following seminar: Karthik Bharath <https://www.nottingham.ac.uk/mathematics/people/karthik.bharath> (Internal Seminar) ----> 4th of March *at 2pm* Title: Shape space and models for functional data Abstract: Statements such as “death rate curve needs to remain single peaked”; “we expect the second peak of infected cases to be smaller compared to the first”, are, unfortunately, all too familiar nowadays. They represent instances of informal descriptions of shapes of functions we can relate to readily, wherein the notion of shape relates exclusively to ‘y direction’ variation. To formalise this, in this talk, I will consider a group-theoretic description of the shape of a function as that which is left behind once ‘x direction’ variability is ignored: only the number and values of local extrema are relevant to describe its shape and not their timings. Accordingly, the shape of a function is shown to be uniquely encoded by a polynomial, and this connection allows us to study structural aspects of the shape space of functions. For statistical analysis of functional data (e.g., densely sampled multiple time series data) the upside to this perspective is that (i) a natural dimension reduction mechanism based on local extrema becomes available when analysing amplitudes that avoids the task of registering (or aligning) the data; and (ii) simple finite-dimensional generative shape models can be defined. On the other hand, geometry of the shape space is complicated, and this makes it difficult to compute descriptive statistics (e.g., average shape) and study models induced on the shape space from the original (simpler) function space. This is joint work with Ian Jermyn (Durham). __________________________________________________ Microsoft Teams meeting Join on your computer or mobile app Click here to join the meeting <https://teams.microsoft.com/l/meetup-join/19%3ameeting_YTYwODYyNDEtYThiZi00…> Learn more <https://aka.ms/JoinTeamsMeeting> | Meeting options <https://teams.microsoft.com/meetingOptions/?organizerId=ac48eccb-4345-40d8-…> -- Fabrizio Leisen Professor of Statistics University of Nottingham School of Mathematical Sciences University Park, Nottingham, NG7 2RD, UK http://sites.google.com/site/fabrizioleisen/

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Pisa Online Seminars - Atul Shekhar (Tuesday, March 9 at 16:00)
by Giacomo Filippo Di Gesu 02 Mar '21

02 Mar '21

Dear colleagues, I would like to invite you to the following online seminar organized by the Probability group of the University of Pisa. The talk will be accessible under the link Click here to join the meeting<https://teams.microsoft.com/l/meetup-join/19%3A17115d7f6ef44c5e91974362906c…> Best regards, Giacomo Tuesday, March 9, 16:00 Speaker: Atul Shekhar (Université Lyon 1) Title: On the fixed points of Branching Brownian motion Abstract: We consider a particle system on the real line in which each particle evolves into many particles via independent Branching Brownian motions. Under a very mild natural assumption, we give a full characterisation of the fixed points of this particle system. This result is motivated by an earlier work of T. Liggett on particle systems without branching. Further motivations come from the close connection between the Branching Brownian motion and the two dimensional Gaussian free field. This talk is based on a joint work with Christophe Garban and Xinxin Chen. ************************ Giacomo Di Gesù Dipartimento di Matematica Università di Pisa Largo Bruno Pontecorvo 5 56127 - Pisa, Italy giacomo.digesu(a)unipi.it<mailto:giacomo.digesu@unipi.it> https://sites.google.com/site/giacomodigesu/

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AMaMeF: update on the 2021 conference in Padova
by Tiziano Vargiolu 02 Mar '21

02 Mar '21

Dear all, we hope that this message finds you well. This message is an update on the 10th general AMaMeF (Advanced Mathematical Methods for Finance) conference, scheduled on June 22-25, 2021, at the University of Padova (Italy). In agreement with the AMaMeF steering committee, we decided to keep the conference on the scheduled dates. Obviously, the current pandemic situation, travel restrictions and the uncertainty of the near future prevent us from organising a conference and the accompanying social events in the style of the good old days. For this reason, we are planning a conference in a hybrid format, with the presence of a limited number of participants and with the option of rapidly switching to a fully online conference, if the hybrid format will turn out to be unfeasible. All of the plenary speakers confirmed their willingness to participate to the conference, and most of them will be present, if possible. The Call for contributed sessions and talks will be announced and opened very soon. Please visit the conference webiste for more detailed informations and constant updates: https://events.math.unipd.it/AMAMEF2021/ Best wishes Tiziano -------------------------------------------------------------------------- Tiziano Vargiolu Dipartimento di Matematica Phone: +39 049 8271383 Universita' di Padova Fax: +39 049 8271428 Via Trieste, 63 E-mail: vargiolu(a)math.unipd.it I-35121 Padova (Italy) WWW: http://www.math.unipd.it/~vargiolu --------------------------------------------------------------------------

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Fwd: Ph.D. position information theory at IMT Lille Douai
by Michele Coghi 01 Mar '21

01 Mar '21

Ricevo ed inoltro. Con preghiera di diffusione a tutti i possibili interessati. On Mon, 1 Mar 2021 at 13:34, Giulia Cervia <giulia.cervia(a)imt-lille-douai.fr> wrote: > Dear all, > > together with Anne Savard and Laurent Clavier we are looking for a PhD > student at IMT Lille Douai. > The topic is in information theory*, *at the intersection between > information engineering and mathematics. More specifically, we are going > to look into efficient code design for finite-blocklength coordination > from both a practical and theoretical perspective. As the first objective > is more engineering-oriented, and the latter is basically large > deviations and Neyman-Pearson theory, the main focus will also depend on > the candidate’s background. More details in the proposal (attached). > > The PhD is supposed to start in September/October 2021, and the > application deadline is May 28th. > > We would be grateful if you could forward this to potentially interested > (master) students. > > Best regards > > Giulia Cervia > > > > -- Herr Dr. Michele Coghi Technische Universität Berlin, Raum 706 Straße des 17. Juni 136, 10587 Berlin, Germany E-Mail: coghi(a)math.tu-berlin.de

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assegno di ricerca in Fisica Matematica Univaq
by davide gabrielli 01 Mar '21

01 Mar '21

Segnalo il bando allegato per 1 assegno di ricerca in Fisica Matematica presso il Dipartimento di Ingegnerie e Scienze dell'informazione e Matematica dell'Università dell'Aquila su tematiche riguardanti la meccanica statistica e la modellistica stocastica. Il bando relativo alla presente procedura selettiva sarà pubblicato mediante affissione allAlbo ufficiale dellUniversità degli Studi dellAquila nonché sul sito internet: - dellAteneo (http://www.univaq.it/section.php?id=766) - del MIUR (http://bandi.miur.it) - dellUnione Europea (http://ec.europa.eu/euraxess) Scadenza 17-03-2021 saluti Davide Gabrielli

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I: Assegno di ricerca nel settore MAT/06 - Ancona
by Alberto Lanconelli 26 Feb '21

26 Feb '21

Ricevo e inoltro. Alberto ________________________________ Da: CRISTINA MARCELLI <c.marcelli(a)staff.univpm.it> Inviato: venerdì 26 febbraio 2021 18:18 A: Alberto Lanconelli <alberto.lanconelli2(a)unibo.it> Oggetto: Assegno di ricerca nel settore MAT/06 - Ancona Cari colleghi, sono docente di Analisi Matematica presso l’Università Politecnica delle Marche (Ancona). Vi scrivo per informarvi di un prossimo bando per un assegno di ricerca nel settore MAT/06 presso la Facoltà di Ingegneria del nostro Ateneo. L'assegno sarà annuale, ma rinnovabile fino a 3 anni. Se conoscete qualche giovane potenzialmente interessato (purché abbia già conseguito il titolo di dottore di ricerca) e desiderate avere maggiori informazioni, potete contattarmi scrivendomi a c.marcelli(a)univpm.it<mailto:c.marcelli@univpm.it> . Grazie per l’attenzione, Cristina Marcelli

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Seminar announcement
by Marco Scarsini 26 Feb '21

26 Feb '21

*Thursday, 4 March, 17:00 CET* *Katya Scheinberg**, *Cornell University A Theoretical and Empirical Comparison of Gradient Approximations in Derivative-Free Optimization <http://mailsender.luiss.it/lists/lt.php?id=cRpQAQUDSAUFBgdOVgFdBQs> Discussants: Pavel Dvurechensky and Giuseppe Ughi The paper can be found here <https://arxiv.org/abs/1905.01332>. This is the link to the Virtual Room <http://mailsender.luiss.it/lists/lt.php?id=cRpQAAYBSAUFBQBOVgFdBQs> The schedule of the upcoming seminars can be found here <https://economiaefinanza.luiss.it/en/seminari/prossimi-seminari>. If you want to receive announcements of future seminars, please fill out this form <https://docs.google.com/forms/d/e/1FAIpQLSeDxM-M5ogG43elgjC-lNCp0BDhISiZHG0…> . ******************************************************* Marco Scarsini Dipartimento di Economia e Finanza Luiss Viale Romania 32 00197 Roma, ITALY URL: http://docenti.luiss.it/scarsini/

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Concorsi per ricercatori e tempo determinato...
by Marco Minozzo 25 Feb '21

25 Feb '21

Carissime e carissimi, nella Gazzetta Ufficiale - IV Serie Speciale n. 14 del 19/02/2021 è stato pubblicato l'avviso relativo all'indizione di procedure selettive per posti di Ricercatore a tempo determinato ai sensi dell'art. 24, comma 3, lettera b) della L. 240/2010 presso l'Università degli Studi di Verona. Si segnalano in particolare i seguenti settori: Dipartimento di Scienze economiche 1 posto SECS-S/01 Statistica - Cod. 2021rtdb034 1 posto SECS-S/06 Metodi Matematici dell'Economia e delle Scienze Attuariali e Finanziarie - Cod. 2021rtdb035 I bandi sono disponibili all'Albo ufficiale e alla pagina concorsi del sito web di Ateneo all'indirizzo: https://www.univr.it/it/concorsi/personale-docente/ricercatore/ricercatore-… La scadenza per la presentazione delle domande è il 22 marzo 2021 alle ore 20.00. Un caro saluto, Marco Minozzo ------------------------------------------------------------------- Prof. Marco Minozzo, PhD Presidente Laurea in Economia e Commercio Dipartimento di Scienze Economiche Università degli Studi di Verona Via Cantarane 24 37129 Verona (Italy) Tel: +39045 8028234 Fax: +39045 8028177 E-mail: marco.minozzo(a)univr.it<mailto:marco.minozzo@univr.it> -------------------------------------------------------------------

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Fwd: [owps] One World Probability Seminar Thursday February 25, 2021
by Faggionato, Alessandra 24 Feb '21

24 Feb '21

Buongiorno, vi inoltro l'annuncio del OWPS di domani. Saluti Alessandra ---------- Forwarded message --------- Da: One World Probability <ow.probability(a)gmail.com> Date: mer 24 feb 2021 alle ore 12:25 Subject: [owps] One World Probability Seminar Thursday February 25, 2021 To: <owps(a)lists.bath.ac.uk> Tomorrow's speakers in the One World Probability Seminar are (Note: all times are in UTC. *Due to time changes, you should check what that translates to in your location*) ------------------------------------------------ (14:00-15:00 UTC) Speaker: Fredrik Viklund (KTH) Title: Interplay between Dirichlet and Loewner energies: cutting-welding operations and foliations by Weil-Petersson quasicircles - Part 1 Abstract: The Loewner energy is a Mobius invariant deterministic quantity attached to Jordan curves in the plane. One way in which it arises is as a large deviations rate function for the Schramm-Loewner evolution with small parameter. A curve has finite Loewner Energy if and only if it is a Weil-Petersson quasicircle, a class of curves that in the last decades has received significant attention by both physicists and mathematicians, but only very recently by probabilists. The Loewner-Kufarev energy is a dual quantity attached to certain continuous families of Jordan curves, which arises in the context of large deviations of SLEs with large parameter. We will survey recent joint works (and beyond) that describe the interplay between these energies (and the Weil-Petersson quasicircles) with the usual Dirichlet energy on the plane. The results are closely related to recent ideas and developments in Random Conformal Geometry but proofs are purely analytic. In the first talk, we begin by presenting background material and a survey of properties and characterisations of Weil-Petersson quasicircles. We then discuss interactions between Weil-Petersson quasicircles with ambient Dirichlet class functions via cutting and conformal welding operations as well as interpretations in terms of "flow-lines". At the end we will present a "dictionary" that relates these statements with ideas in Random Conformal Geometry. (15:00-16:00 UTC) Speaker: Yilin Wang (MIT) Title: Interplay between Dirichlet and Loewner energies: cutting-welding operations and foliations by Weil-Petersson quasicircles - Part 2 Abstract: The main topic of the second talk is the Loewner-Kufarev energy and corresponding families of Weil-Petersson quasicircles. We will indicate how to associate to such a foliation a (geometric) "winding function" on the plane whose Dirichlet energy equals the (analytic) Loewner-Kufarev energy. This duality entails several interesting results: for example, the Loewner-Kufarev Energy is in fact reversible and we obtain a new characterisation of Weil-Petersson quasicircles. We will end by discussing further implications and open problems. *Main references:*F. Viklund, Y. Wang: Interplay between Loewner and Dirichlet energies via conformal welding and flow-lines, Geom. Funct. Anal. (GAFA) 30 289–321 (2020) F. Viklund, Y. Wang: The Loewner-Kufarev Energy and Foliations by Weil-Petersson Quasicircles, arXiv:2012.05771 (2020) ------------------------------------------------ The zoom link will appear the day before on the OWPS website: https://www.owprobability.org/one-world-probability-seminar <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.owpro…> It can also be directly accessed through the link below: https://uniroma1.zoom.us/j/89460596402?pwd=QmZ5N25waCs5NVl5QkJGdWxQTFpDdz09 <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Funiroma1.…> Meeting-ID: 894 6059 6402 Passcode: 307302 Please feel free to circulate this email. We hope to see you all tomorrow! One World Probability Team -- ************************************************* Prof. Alessandra Faggionato http://www1.mat.uniroma1.it/~faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 5, Phone (0039) 06 49913252 *************************************************

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RTDB MAT/06 Università di Verona
by Paolo Dai Pra 23 Feb '21

23 Feb '21

Vi informo dell’uscita del bando RTDB S.C. 01/A3 Analisi matematica, Probabilità e Statistica matematica - S.S.D. MAT/06 Probabilità e Statistica matematica Presso in Dipartimento di Informatica dell’Università di Verona. https://www.univr.it/it/concorsi/personale-docente/ricercatore/ricercatore-… <https://www.univr.it/it/concorsi/personale-docente/ricercatore/ricercatore-…> Paolo Dai Pra Dipartimento di Informatica Università degli Studi di Verona Strada Le Grazie 15, 37134 Verona, Italy Tel. +390458027093

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Seminari Gruppo PRISMA
by c.ceci＠unich.it 22 Feb '21

22 Feb '21

Buongiorno a tutti, abbiamo il piacere di annunciare il secondo appuntamento del ciclo mensile di seminari online promosso dal Gruppo UMI PRISMA. Lunedi’ 1 marzo 2021, ore 16-18 Alessandra Faggionato Titolo: Random resistor networks and Mott’s variable range hopping Abstract: Random resistor networks allow to study electron transport indisordered systems. By means of stochastic homogenization one can characterize the infinite volume effective conductivity in terms of the homogenized matrix of suitable discrete Poisson equations. We will then focus on the low temperature behavior of the random conductance model and the Miller-Abrahams random resistor network. The latter models the so-called Mott’s variable range hopping, a fundamental transport mechanism in disordered solids in the regime of strong Anderson localization. We will discuss its percolative properties and show how homogenization, percolation and scaling arguments lead to Mott’s law. (For the percolation part, the talk is based on joint works with H.A. Mimun). Elisabetta Candellero Titolo: Competition processes on hyperbolic non-amenable graphs Abstract: We consider two first-passage percolation processes, FPP_1 and FPP_\lambda, spreading with rates 1 and \lambda respectively, on a graph G with bounded degree. FPP_1 starts from a single source, while the initial configuration of FPP_\lambda consists of countably many seeds distributed according to a product of iid Bernoulli random variables of parameter \mu on the set of vertices. This model is known as "First passage percolation in a hostile environment" (FPPHE), and was introduced by Stauffer and Sidoravicius as an auxiliary model for investigating a notoriously challenging model called Multiparticle Diffusion Limited Aggregation. We consider several questions about FPPHE, focusing on the case when G is a non-amenable hyperbolic graph. This talk is based on joint works with Alexandre Stauffer. Collegamento Teams: https://teams.microsoft.com/l/meetup-join/19%3ameeting_YjVhZDc3MDctZTU1NC00… Tutte le informazioni le trovate anche alla pagina: http://www.umi-prisma.polito.it/webinars.html Grazie per l’attenzione, Claudia Ceci e Domenico Marinucci **************************************** Claudia Ceci Dipartimento di Economia Universita' "G. d'Annunzio" V.le Pindaro 42 65127, Pescara, ITALY c.ceci(a)unich.it ****************************************

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Three two-year postdoctoral fellowships -- Torino, Italy
by Federico Polito 21 Feb '21

21 Feb '21

The Department of Mathematics "G. Peano" (University of Torino) invites applications for *three two-year postdoctoral fellowships* in all areas of applied and pure mathematics. The winners will work with researchers of the department in all areas of mathematics, including Probability and Statistics. The call is online at https://pica.cineca.it/unito/ Look for "Bando assegni di ricerca - Cofinanziati - Tornata XXIII" and click the left blue button (Bando/call). For the application procedure choose instead the button on the right (Le tue domande/your applications -- the application is then available in English). *The closing date is March 8, 2021 (1pm CET)* The dates and location of the interviews will be published at https://www.serviziweb.unito.it/albo_ateneo/ For any enquiries in the area of probability please feel free to email me. Best regards, Federico Polito -- Federico Polito Department of Mathematics University of Torino Via Carlo Alberto, 10 10123, Torino, Italy Email: federico.polito(a)unito.it Web: www.federicopolito.it

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Tenure Track position in Financial Mathematics – University of Verona
by Alessandro Gnoatto 20 Feb '21

20 Feb '21

The Department of Economics at the University of Verona is looking for a tenure track researcher in the field of Financial and Insurance Mathematics (SECS-S/06 - 13/D4). The Department of Economics offers a vibrant research environment in the newly built campus of Santa Marta. According to the latest Italian Research Assessment Exercise (VQR), it ranks in the top 5% of the economics departments for the number of academics with only top publications and, according to REPEC, is in the top 10% in Italy for the proportion of cited publications. The Verona Quantitative Finance group offers a stimulating environment with researchers focusing on different areas such as: high frequency financial econometrics and asset pricing, mathematical/quantitative finance, stochastic optimal control and computational finance. The position is a fixed-term 3-year position (RTDB). If the researcher receives the National Scientific Habilitation (ASN), at the end of the 3 years then he/she becomes a tenured Associate Professor. A minimum of 3 years of postdoc experience is required together with a working knowledge of Italian. The call and the online application form can be accessed via the following link. https://www.univr.it/it/concorsi/personale-docente/ricercatore/ricercatore-… <https://www.univr.it/it/concorsi/personale-docente/ricercatore/ricercatore-…> For questions, please contact: alessandro.gnoatto(a)univr.it <mailto:alessandro.gnoatto@univr.it>

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Bernoulli Society New Researcher Award 2022
by Antonio DI CRESCENZO 19 Feb '21

19 Feb '21

Bernoulli Society welcomes applications for the New Researcher Award 2022. The deadline for applications is 15 March 2021. Each awardee shall deliver a talk at a special invited session during the 42nd Conference on Stochastic Processes and their Applications in 2022, and will receive a funding up to 1000€ to offset travel and other expenses. Eligible candidates are active researchers in Probability Theory who obtained their PhD degree on or after March 1st, 2016, and who are regular members of the Bernoulli Society. Candidates should apply through the web form https://docs.google.com/forms/d/e/1FAIpQLSdajP4NBGSWFXHJxoVCQTmJMpv9rM2ZRNV… For more information, visit the website http://www.bernoulli-society.org/news/37-general-announcement/324-bernoulli… -- Antonio Di Crescenzo

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Two associate professor positions in Stockholm
by Martina Favero 19 Feb '21

19 Feb '21

Dear all, Two positions as associate professor in mathematics (specialization in mathematical statistics) are open at KTH, Stockholm. The two positions differ slightly in the subject description, see https://www.kth.se/en/om/work-at-kth/lediga-jobb/what:job/jobID:375477 and https://www.kth.se/en/om/work-at-kth/lediga-jobb/what:job/jobID:375478 for more details. The deadline for application is April 9, 2021. Best wishes, Martina Favero

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Seminar announcement
by Marco Scarsini 19 Feb '21

19 Feb '21

Thursday, 25 February, 17:00 CET *Daniela Saban,* Stanford University Online Assortment Optimization for Two-sided Matching Platforms <http://mailsender.luiss.it/lists/lt.php?id=cRpQAAwDSAUFBQBOVgFdBQs> Discussants: Will Ma and Antoine Désir The paper can be found here <https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3712553>. This is the link to the Virtual Room <http://mailsender.luiss.it/lists/lt.php?id=cRpQAAYBSAUFBQBOVgFdBQs> The schedule of the upcoming seminars can be found here <https://economiaefinanza.luiss.it/en/seminari/prossimi-seminari>. If you want to receive announcements of future seminars, please fill out this form <https://docs.google.com/forms/d/e/1FAIpQLSeDxM-M5ogG43elgjC-lNCp0BDhISiZHG0…> . ******************************************************* Marco Scarsini Dipartimento di Economia e Finanza Luiss Viale Romania 32 00197 Roma, ITALY URL: http://docenti.luiss.it/scarsini/

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Padova Online Seminar by Luca Avena (Leiden University) [Friday, Feb. 26 at 14.30]
by alessandra bianchi 19 Feb '21

19 Feb '21

Dear Colleagues, We would like to invite you to the following Probability seminar that will take place on February 26 at 14.30 by the zoom platform. ________________________________________________________ Speaker: Luca Avena (Leiden University) Title: Node immunization in networks: a scalable searching algorithm based on random rooted forests 26 FEBRUARY (Friday) - 14:30 zoom link: TBA available on the webpage https://www.math.unipd.it/~bianchi/seminari/ ) Abstract: We are interested in the so-called multiple-node immunization for complex networks under attack of a viral agent. The latter is a hot topic in network science and it consists of identifying and removing a set of nodes of a given size in a graph to maximally impede the agent spread. Several approaches have been proposed in the literature based on numerical and theoretical insights on how classical models for virus spread (so-called compartmental models) evolve on graphs. Based on the stability analysis of these compartmental models, the maximal eigenvalue of the adjacency matrix of the graph has been proposed as a measure for how resilient the network is. Thus one of the most common approaches for immunization consists in identifying the set of nodes of a given cardinality, for which the reduced network, obtained by removing these nodes, has minimal largest eigenvalue. This optimization problem turns out to be a computationally hard problem in the well known NP class and the available exact or proxy algorithms offer good solutions and performances only for small data sets. We propose a novel randomized flexible method to efficiently identify these sets of nodes based on random walk kernels and random rooted forests. We explain the theoretical results underlying the method, and present experimental results where we test method and performances on classical synthetic and real-world benchmarks. Joint work with Michael Emmerich, Alex Gaudilliere and Irina Gurewitsch -- Alessandra Bianchi Dip. di Matematica Università di Padova Via Trieste, 63 - 35121 Padova, Italy phone: +39 049 827 14 06 fax: +39 049 827 14 28 e-mail: bianchi(a)math.unipd.it http://www.math.unipd.it/~bianchi/

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Webinar in Statistics YUN WEI - 26/2, ore 17
by Pierpaolo De Blasi 19 Feb '21

19 Feb '21

WEBINARS IN STATISTICS @ COLLEGIO CARLO ALBERTO <https://www.carloalberto.org/events/category/seminars/seminars-in-statistic…> Venerdi 26 Febbraio 2021, alle ore 17:00, si terrà il seguente webinar: ------------------------------------------------ Speaker: *Yun Wei (*Samsi and Duke University, USA) Title: *Obtaining faster convergence rates in finite mixture models by taking repeated measures* Zoom link: https://us02web.zoom.us/j/89954920036?pwd=dndsQnZqQ2crZzVlRW1pM0Q2RGo1Zz09 Meeting ID: 899 5492 0036 Passcode: 418668 Abstract: It is known that some finite mixture models suffer from slow rates for estimating the component parameters. Examples are mixtures of the weakly identifiable families in the sense of [Ho and Nguyen 2016]. To obtain faster parameter convergence rates, we propose to collect more samples from each mixture component, hence each data is a vector of samples from the same mixture component. Such a model is known in the literature as a finite mixture model of repeated measures, which has been applied in psychological study and topic modeling. This model also belongs to the mixture of product distributions, with the special structure that the product distributions in each mixture component are also identical. In this setup, each data consists of conditionally independent and identically distributed samples and thus is an exchangeable sequence. We show that by taking repeated measures (collecting more samples from each mixture component), a finite mixture model that is not originally identifiable becomes identifiable. Moreover, the posterior contraction rates for the parameter estimation are also obtained, demonstrating that repeated measures are beneficial for estimating the component parameters. Our results hold for general probability families including all regular exponential families and can also be applied to hierarchical models. The key tool to develop the results is by establishing an inverse inequality to upper bound a suitable distance between mixing measures by the total variational distance between the corresponding mixture densities. Based on joint work with Xuanlong Nguyen (University of Michigan). ------------------------------------------------ Il webinar è organizzato dalla "de Castro" Statistics Initiative www.carloalberto.org/stats in collaborazione con il Collegio Carlo Alberto e rientra nel Complex Data Modeling Research Network midas.mat.uc.cl/network Cordiali saluti, Pierpaolo De Blasi --- University of Torino & Collegio Carlo Alberto carloalberto.org/pdeblasi <https://sites.google.com/a/carloalberto.org/pdeblasi/>

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Fwd: PhD at the Scuola Normale Superiore (Pisa, Italy). Call 2021-2022
by Fabrizio Lillo 18 Feb '21

18 Feb '21

The call for applications to the 2021/2022 PhD program in *Computational Methods and Mathematical Models for Sciences and Finance* at the Scuola Normale Superiore, Pisa, see https://www.sns.it/en/computational-methods-and-mathematical-models-for-sci… ., is available here https://www.sns.it/en/admissions/phd/how-to-apply-for-the-phd-courses Please distribute this information to potentially interested candidates. Thank you very much in advance. ---------------------------------------- Fabrizio Lillo Dipartimento di Matematica, Università di Bologna Scuola Normale Superiore, Pisa ITALY Personal website: fabriziolillo.wordpress.com University website: www.unibo.it/sitoweb/fabrizio.lillo <http://fabriziolillo.wordpress.com/> phone: +39 050509159

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Fwd: [owps] One World Probability Seminar Thursday February 18, 2021
by Faggionato, Alessandra 17 Feb '21

17 Feb '21

Buongiorno, inoltro l'annuncio del OWPS di domani. Saluti Alessandra ---------- Forwarded message --------- Da: One World Probability <ow.probability(a)gmail.com> Date: mer 17 feb 2021 alle ore 10:50 Subject: [owps] One World Probability Seminar Thursday February 18, 2021 To: <owps(a)lists.bath.ac.uk> Tomorrow's speaker in the One World Probability Seminar is (Note: all times are in UTC. *Due to time changes, you should check what that translates to in your location*) ------------------------------------------------ (14:00-16:00 UTC) Speaker: Richard Kenyon (Yale) Title: The multi-tiling model Abstract: Given a graph G and collection of connected subgraphs T (called tiles), we consider covering G with copies of tiles in T so that each vertex of G is covered with a predetermined multiplicity. The multitiling model is a natural probability measure on such configurations. In the limit of large multiplicities we compute the asymptotic growth rate of the number of multitilings: the free energy of the multitiling model. We will show that the individual tile densities tend to a Gaussian field with respect to an associated discrete Laplacian. We also find an exact discrete Coulomb gas limit when we vary the multiplicities. This is joint work with Andrei Pohoata (Yale). Please note: Richard Kenyon will be giving both talks in the session. ------------------------------------------------ The zoom link will appear the day before on the OWPS website: https://www.owprobability.org/one-world-probability-seminar <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.owpro…> It can also be directly accessed through the link below: https://uniroma1.zoom.us/j/83228198137?pwd=QUxhM1NXdlFTOGxvc09IUGIvenBxUT09 <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Funiroma1.…> Meeting-ID: 832 2819 8137 Passcode: 029896 Please feel free to circulate this email. We hope to see you all tomorrow! One World Probability Team -- ************************************************* Prof. Alessandra Faggionato http://www1.mat.uniroma1.it/~faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 5, Phone (0039) 06 49913252 *************************************************

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Workshop "Bayesian Inference in Stochastic Processes - Online", 27-28 May 2021
by elisa varini 17 Feb '21

17 Feb '21

On behalf of the Scientific and Organising Committees we are pleased to inform you that the Twelth Workshop on “*Bayesian Inference in Stochastic Processes (BISP12)*” will be held *online* on *27-28 May 2021* (afternoons, Central European Summer Time). Attendance is free of charge but registration is required (and limited to 150 people). As in the past, the workshop will provide an opportunity to review, discuss and explore directions of development of Bayesian Inference in Stochastic Processes. Ten presentations by young scientists have been scheduled this year, followed by an in-depth discussion by senior scholars in the field. The workshop is organised by CNR-IMATI (Milano), www.imati.cnr.it. Information on programme, website and registration will be available in early Spring. Elisa Varini and Fabrizio Ruggeri Chairs, Organising and Scientific Committees

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Pisa Online Seminars - Renaud Raquépas (Tuesday, Feb. 23 at 16:00)
by Giacomo Filippo Di Gesu 16 Feb '21

16 Feb '21

Dear colleagues, I would like to invite you to the following online seminar organized by the Probability group of the University of Pisa. The talk will be accessible under the link Click here to join the meeting<https://teams.microsoft.com/l/meetup-join/19%3A17115d7f6ef44c5e91974362906c…> Best regards, Giacomo Tuesday, Feb. 23, 16:00 Speaker: Renaud Raquépas (McGill University Montréal and Université Grenoble Alpes) Title: Entropy production in nondegenerate diffusions: the large-time and small-noise limits Abstract: Entropy production (EP) is a key quantity originating from thermodynamics and statistical physics which quantifies the irreversibility of the time evolution of physical systems. I will start with a general introduction to the different approaches to defining EP. Then, I will focus on the context of nondegenerate diffusions and I will describe the large-deviation properties of EP as time goes to infinity. Finally, I will discuss the behaviour of the corresponding rate function as the intensity of the noise goes to zero. ************************ Giacomo Di Gesù Dipartimento di Matematica Università di Pisa Largo Bruno Pontecorvo 5 56127 - Pisa, Italy giacomo.digesu(a)unipi.it<mailto:giacomo.digesu@unipi.it> https://sites.google.com/site/giacomodigesu/

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Sussex probability seminar
by Enrico Scalas 15 Feb '21

15 Feb '21

Dear Colleagues, On Monday 22nd February at 11am UK time, Minmin Wang (Department of Mathematics, University of Sussex) will present a seminar on k-cut model for the Brownian Continuum Random Tree Paper: https://arxiv.org/abs/2007.11080 If you are interested in joining the seminar, please contact Dr Wang at: minmin.wang(a)sussex.ac.uk. Best regards, Enrico Scalas

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Fwd: Funded PhD positions at University College Dublin
by Bisi, Elia 12 Feb '21

12 Feb '21

Dear colleagues, Applications are open for PhD scholarships in Maths & Stats at University College Dublin — see announcement below. Possible projects in probability will be supervised by Neil O’Connell. Cheers, Elia Bisi ————————— Elia Bisi Assistant Professor (non-TT) Vienna University of Technology (TU Wien) Research Unit Mathematical Stochastics https://eliabisi.com ---------- Forwarded message ---------- From: Neil O'Connell <neil.oconnell(a)ucd.ie> Date: 12 Feb 2021, 16:46 +0100 To: Neil O'Connell <neil.oconnell(a)ucd.ie> Subject: Funded PhD positions at University College Dublin Dear colleagues, I would be grateful if you could forward the announcement below to any suitable mailing lists or students who might be interested: Applications are invited for the UCD School of Mathematics and Statistics Research Demonstratorship scholarship scheme. These scholarships fund up to 4 years full-time PhD research, beginning on 1st September 2021. The closing date for applications is March 9th 2021 with results anticipated by early April 2021. Details on the scholarships and the application process are available at www.ucd.ie/mathstat/study/researchdegrees/rd2021<http://www.ucd.ie/mathstat/study/researchdegrees/rd2021>. Best regards, Neil O'Connell

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Gubinelli graduate course
by Stefania Ugolini 12 Feb '21

12 Feb '21

Università degli Studi di Milano: PhD program Stochastic quantization of the Euclidean quantum field theory Lecturer: Prof. Dr. Massimiliano Gubinelli The goal of Euclidean quantum field theory is to build probability measures on the space of distributions satisfying properties such as Euclidean invariance, reflection positivity and non-triviality, that allows to recover an interacting relativistic quantum field satisfying Wightman axioms. Stochastic quantization, first proposed by Parisi–Wu and Nelson, is a method of construction of such measures via stationary solutions of a stochastic partial differential equations driven by additive Gaussian white noise. In this course we will learn about the stochastic quantization of the Euclidean quantum field theory of a scalar boson with quartic interaction and its main properties. We introduce the Φ43 measure as the limit of the invariant measure of a finite dimensional system of stochastic differential equations. The proof proposed uses several analytic and probabilistic techniques, such as white noise analysis, weighted Besov spaces on lattice and paraproducts, which also find applications in other problems arising in the study of deterministic and stochastic singular differential equations. All these tools and ideas will be gradually introduced and explained during the lectures. The course is as much as possible self-contained and requires as a prerequisite only basic knowledge of stochastic and functional analysis. Scheduling: February 15, 16, 18, 22, 25 from 10:00 to 12:00 and from 14:00 to 16:00 Topic: Lectures on Stochastic Quantisation Time: This is a recurring meeting Meet anytime Join Zoom Meeting https://www.iam.uni-bonn.de/abteilung-gubinelli/sq-lectures-milan-ws2021(ht…" target="_blank">https://uni-bonn.zoom.us/j/94642762037?pwd=MG80cW92T29PMWw3dDQ3aEdsY2lsdz09 Meeting ID: 946 4276 2037 Passcode: 954150 The link is available also at the following page: Course page: <signaturebeforequotedtext></signaturebeforequotedtext><signatureafterquotedtext></signatureafterquotedtext>

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Seminar announcement
by Marco Scarsini 12 Feb '21

12 Feb '21

Thursday, 11 February, 17:00 CET *Eva Tardos,* Cornell University Stability and Learning in Strategic Queuing Systems <http://mailsender.luiss.it/lists/lt.php?id=cRpQAAALSAUFAA1OVgFdBQs> Discussants: Eran Shmaya and Federico Fusco The papers can be found here <https://arxiv.org/abs/2003.07009> and here <https://arxiv.org/abs/2011.10205>. This is the link to the Virtual Room <http://mailsender.luiss.it/lists/lt.php?id=cRpQAAYBSAUFAA1OVgFdBQs>. The schedule of the upcoming seminars can be found here <https://economiaefinanza.luiss.it/en/seminari/prossimi-seminari>. If you want to receive announcements of future seminars, please fill out this form <https://docs.google.com/forms/d/e/1FAIpQLSeDxM-M5ogG43elgjC-lNCp0BDhISiZHG0…> . ******************************************************* Marco Scarsini Dipartimento di Economia e Finanza Luiss Viale Romania 32 00197 Roma, ITALY URL: http://docenti.luiss.it/scarsini/

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Entropy - Special Issue "Measures of Information"
by francesco.buono3＠unina.it 10 Feb '21

10 Feb '21

Dear All, On behalf of the guest editor - Prof. Dr. Maria Longobardi, I would like to invite you to submit a paper to the Special Issue titled "Measures of Information" for Entropy (ISSN 1099-4300, IF 2.494). Special Issue Homepage: https://www.mdpi.com/journal/entropy/special_issues/meas_inf Submission deadline: 14 May 2021 Entropy is an open access journal which maintains a rigorous and fast peer-review system and accepted papers are immediately published online. Because it is an online and open access journal, papers published in Entropy will receive high publicity. It is fully covered by the leading indexing and abstracting services, including Google Scholar, MathSciNet, Scopus and Science Citation Index Expanded (Web of Science). The Impact Factor for Entropy is 2.494 (2019). An Article Processing Charge (APC) of CHF 1800 currently applies to all accepted papers. If the idea can retain your attention, please do not hesitate to contact Vincent Shang for further information. We are looking forward to hearing from you. -- Best regards, Francesco Buono

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Fwd: [owps] One World Probability Seminar Thursday February 11, 2021
by Faggionato, Alessandra 10 Feb '21

10 Feb '21

Buongiorno inoltro l'annuncio del OWPS di domani. Saluti Alessandra ---------- Forwarded message --------- Da: One World Probability <ow.probability(a)gmail.com> Date: mer 10 feb 2021 alle ore 09:25 Subject: [owps] One World Probability Seminar Thursday February 11, 2021 To: <owps(a)lists.bath.ac.uk> Tomorrow's speakers in the One World Probability Seminar are (Note: all times are in UTC. *Due to time changes, you should check what that translates to in your location*) ------------------------------------------------ (14:00-15:00 UTC) Speaker: Bálint Virág (Toronto) Title: Introduction to random plane geometry Abstract: If lengths 1 and 2 are assigned randomly to each edge in Z^2, what are the fluctuations of distances between far away points? This problem is open, yet we know, in great detail, what to expect. The directed landscape, a universal random plane geometry, provides the answer to such questions. What is the directed landscape? What does it teach us about longest increasing subsequences in random permutations, about random polymers, about models for spread of infection, about tetris, about random Schrodinger operators, and about cell biology? (15:00-16:00 UTC) Speaker: Duncan Dauvergne (Princeton) Title: Building the directed landscape Abstract: The directed landscape is a random 'directed metric' on the plane that arises as the full scaling limit of last passage percolation. It was recently constructed by myself, Janosch Ortmann and Bálint Virág, and it is expected to be a universal limit for models in the KPZ universality class (e.g. random polymers, the KPZ equation, first passage percolation). In this talk I will explain some of the new ideas that underlie this construction. The key innovation is showing that a certain isometric property of the Robinson-Schensted-Knuth bijection passes to the limit. ------------------------------------------------ The zoom link will appear the day before on the OWPS website: https://www.owprobability.org/one-world-probability-seminar <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.owpro…> It can also be directly accessed through the link below: https://uniroma1.zoom.us/j/88066239585?pwd=djNYaHNkWUpGVkVZeWlXaHE5SkpqZz09 <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Funiroma1.…> Meeting-ID: 880 6623 9585 Passcode: 635181 Please feel free to circulate this email. We hope to see you all tomorrow! One World Probability Team -- ************************************************* Prof. Alessandra Faggionato http://www1.mat.uniroma1.it/~faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 5, Phone (0039) 06 49913252 *************************************************

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Ph.d. position (Spatio-temporal clustering and extreme-value theory)
by DI BERNARDINO Elena 09 Feb '21

09 Feb '21

Dear all, Please find attached a Ph.D. scholarship in Laboratory J.A. Dieudonné, University Cote d'Azur, Nice. This Ph.D. scholarship will start in September 2021 for 3 years and focus on the study of clustering methods taking into account the spatio-temporal dependency. A particular attention will be payed to programming the proposed methods and apply them to environmental data-sets. In addition, the selected student will be able to make proposals and test variant of the considered methods. For more information about this Ph.D. thesis please contact : Elena Di Bernardino at elenadb(a)nice.fr<mailto:elenadb@nice.fr> Gwladys Toulemonde gwladys.toulemonde(a)umontpellier.fr<mailto:gwladys.toulemonde@umontpellier.fr> Thomas Laloe laloe(a)unice.fr<mailto:laloe@unice.fr> Best regards, Elena Di Bernardino, Gwladys Toulemonde and Thomas Laloe Elena Di Bernardino Professeure des Universités Laboratoire J.A. Dieudonné Université Côte d'Azur Parc Valrose, 06108 Nice, Cedex 2, France

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LINK a SEMINARIO AGRESTI RM1 oggi 08 febbraio 2021 ore 16:00
by Nappo, Giovanna 08 Feb '21

08 Feb '21

SEMINARIO DI PROBABILITA' E STATISTICA MATEMATICA Dipartimento di Matematica "Guido Castelnuovo" Università di ROMA, la SAPIENZA Link Zoom https://uniroma1.zoom.us/j/81656265460?pwd=UmlZQzBDY2VmSUwrNitZbkNWMERIdz09 Lunedì 08 febbraio 2021 Ore 16:00 (modalità telematica con Zoom) Antonio AGRESTI (Dottorato in Matematica, Sapienza Università di Roma) Nonlinear parabolic stochastic evolution equations in critical spaces. Abstract: Critical spaces for non-linear equations are important due to scaling invariance, and in particular this plays a central role in fluid dynamics. In this talk we introduce and discuss local/global well-posedness, and blow-up criteria for stochastic parabolic evolution equations in critical spaces. Our results extend the celebrated theory of Prüss, Wilke and Simonett for deterministic PDEs. Due to the presence of noise it is unclear that a stochastic version of the theory is possible, but as we will show a suitable variation of the theory remains valid. We will also explain several features which are new in both the deterministic and stochastic framework. In particular, we discuss a new bootstrap method to prove regularization of solutions to (S)PDEs, which can also be applied in critical situations. Our theory is applicable to a large class of semilinear and quasilinear parabolic problems which includes many of the classical SPDE. During the talk we give applications to stochastic reaction-diffusion equations and stochastic Navier-Stokes equations with gradient noise. This is a joint work with Mark Veraar (TU Delft).

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Symmetry - Special Issue "Bioinformatics and Statistics"
by Antonella Iuliano 08 Feb '21

08 Feb '21

Dear Colleagues, We are pleased to inform you that the following special issue is now open to receive submissions for possible publications. The paper will be published in Symmetry (a peer-reviewed open access journal ISSN 2073-8994 https://www.mdpi.com/journal/symmetry <https://www.mdpi.com/journal/symmetry> I. F. 2.645 (2019)). Below, you can find further information. Special Issue "Bioinformatics and Statistics" Website: https://www.mdpi.com/journal/symmetry/special_issues/Bioinformatics_Statist… <https://www.mdpi.com/journal/symmetry/special_issues/Bioinformatics_Statist…> Guest Editors: Dr. Claudia Angelini, Istituto per le Applicazioni del Calcolo “M. Picone” - CNR, Dr. Italia De Feis, Istituto per le Applicazioni del Calcolo “M. Picone” – CNR, Dr Antonella Iuliano, Telethon Institute of Genetics and Medicine Deadline for manuscript submissions: 31 July 2021 If you are interested in presenting a contribution, we kindly ask you to let us know within 15 March 2021. Potential topics for manuscripts include but are not limited to: Penalized statistical methods for omics data Statistical methods for omics data integration Machine Learning and Deep learning approaches in bioinformatics Mathematical and probabilistic models in biology Multitask learning in biological applications Network analysis and omics data Computational and statistical tools in bioinformatics High dimensional data visualization Description: In the last decades, advances in high throughput technologies have allowed scientists to collect massive omics datasets. International projects and consortia made different types of omics data publicly available. Examples span from transcriptomics to epigenomics, proteomics, and metabolomics. Moreover, scientists can also collect heterogenous multi-omic information on the same samples, allowing to elucidate the interplay role of different cellular components. However, the difficulty in defining an appropriate statistical methodology to analyze the data and integrate diverse sources of information and the limited availability of efficient algorithms and software tools hinder the possibility of investigating fundamental cellular mechanisms and understanding disease onset and progression. This gap prompted us to highlight the statistical data analysis challenges and collect novel emerging statistical methods for omics data analysis and integration in a thematic issue on Bioinformatics and Statistics. Manuscripts that report novel software tools and efficient algorithms are very welcome too. As the Guest Editors, we warmly invite you to contribute to our Special Issue. Do not hesitate to forward this message to anyone who could be interested. Thank you very much for your kind consideration, and apologies for multiple copies. We look forward to hearing from you. Claudia Angelini Italia De Feis Antonella Iuliano -- Antonella Iuliano, PhD Bioinformatics Core Telethon Institute of Genetics and Medicine (TIGEM) E-mail: a.iuliano(a)tigem.it <mailto:a.iuliano@tigem.it>

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Fwd: Postdoc/PhD positions in discrete probability
by Elisabetta Candellero 07 Feb '21

07 Feb '21

Buongiorno, ricevo ed inoltro gli annunci di due bandi per postdoc e/o dottorato in Francia. Cordiali saluti, Elisabetta ---------- Forwarded message --------- From: Dieter Mitsche <dmitsche(a)gmail.com> Date: Fri, Feb 5, 2021 at 12:25 PM Subject: Postdoc/PhD positions in discrete probability To: Dear all, I hope you are doing fine in these strange times. Could you please forward the announcement below to interested candidates? thanks, dieter ============ Applications are invited for the following two positions within the project "Dynamic hyperbolic graphs" http://math.univ-lyon1.fr/~mitsche/GrHyDy/GrHyDy.htm. The two positions will be at two different places (Institut Camille Jordan and Institut Mines Télécom Lille Douai), but the successful candidates will have the chance and are encouraged to spend time at the different project locations: 1) Fully funded 2-year postdoc position OR fully funded PhD scholarship at Institut Camille Jordan (http://math.univ-lyon1.fr/) hosted by Dieter Mitsche. For more details how to apply please look at http://math.univ-lyon1.fr/~mitsche/GrHyDy/ANRposition.pdf (contact Dieter Mitsche, dmitsche(a)gmail.com, for information and for applying for this position) 2) Fully funded 1-year postdoc position at Institut Mines Télécom Lille Douai, hosted by David Coupier. For more details please look at http://math.univ-lyon1.fr/~mitsche/GrHyDy/ANRpositionDavid.pdf (contact David Coupier, david.coupier(a)imt-lille-douai.fr for information and for applying for this position) Informal inquiries welcome. Deadline for applications: May 1, 2021 ((If you are interested, please contact us as soon as possible. Depending on the applications that we will receive, we may decide to fill the position before the official deadline).

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I: Post-doc position in Rennes
by Marco Alessandro Fuhrman 05 Feb '21

05 Feb '21

Buongiorno. Inoltro volentieri un messaggio su una posizione post-doc all'estero. Cordiali saluti. Marco Fuhrman <signaturebeforequotedtext></signaturebeforequotedtext> -------- Messaggio originale -------- Da: Arnaud Debussche <arnaud.debussche(a)ens-rennes.fr> Data: 04/feb/2021 14.07.50 Oggetto: Post-doc position in Rennes A: Arnaud Debussche <arnaud.debussche(a)ens-rennes.fr> Dear all, A post-doctoral position will be available at the ENS Rennes next fall 2021. Please find the announcement attached. Best regards, Arnaud. <signatureafterquotedtext></signatureafterquotedtext>

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Call for 3 PhD positions and 2 Postdoc positions at the University of Oslo
by Giulia Di Nunno 04 Feb '21

04 Feb '21

Dear Colleagues, this is to draw your attention to the call for 3 PhD positions and 2 Postdoc (3 years) positions at the University of Oslo in stochastic analysis, stochastic (partial) differential equations, control and their applications to finance, insurance, energy and risk: PhD Research Fellow in Stochastic Analysis, Risk and Machine Learning<https://www.jobbnorge.no/ledige-stillinger/stilling/200033/phd-research-fel…> PhD Research Fellow in Stochastic analysis and insurance mathematics<https://www.jobbnorge.no/ledige-stillinger/stilling/200006/phd-research-fel…> PhD Research Fellow in Stochastics, Partial Differential Equations, Computational Mathematics, and Risk<https://www.jobbnorge.no/ledige-stillinger/stilling/200028/phd-research-fel…> Postdoctoral Research Fellow in Stochastics, Differential Equations, Computational Mathematics, and Risk<https://www.jobbnorge.no/ledige-stillinger/stilling/200030/postdoctoral-res…> Postdoctoral Research Fellow in Mathematics, Mechanics or Statistics<https://www.jobbnorge.no/ledige-stillinger/stilling/200036/postdoctoral-res…> The deadline of application is February 28th, 2021. Full description of the different positions and details for application procedure are given here: https://www.mn.uio.no/math/english/about/vacancies/index.html Please help to advertise these calls and bring them to the attention possible candidates. Thank you in advance! Best wishes Giulia --- Giulia Di Nunno Professor Department of Mathematics University of Oslo

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Statistics and Probability Seminars @University of Nottingham: Rachel Carrington
by Fabrizio Leisen 03 Feb '21

03 Feb '21

Dear All, the Statistics and Probability group at the University of Nottingham organize a series of internal seminars which will be available to anyone interested, even outside the University of Nottingham. Our next speaker is Dr *Rachel Carrington*. Seminar date and time: *11th* * of February at 2pm. * Below you can find the Abstract and Title. Furthermore, you can find the Teams link to join the seminar. Best Wishes, Fabrizio Leisen You are cordially invited to the following seminar: Rachel Carrington <https://www.researchgate.net/profile/Rachel_Carrington2> (Internal Seminar) ----> *11**th** of* *February at 2pm* *Title:* Semi-supervised word embeddings *Abstract:* Word embeddings are a popular way of modelling language, in which words are represented as low-dimensional vectors. The aim is that distances between vectors correspond to relationships between words: words with similar meanings should be closer together in the embedding space. Recently this has been a growing area of interest, with applications including sentiment analysis, machine translation, and artificial intelligence. However, a disadvantage is that large amounts of data are generally needed to train word embedding models. In this talk I will first give an overview of how word embeddings are generated, and then I will outline a novel method of generating semi-supervised word embeddings, based on multidimensional scaling, which has the potential to reduce the amount of data needed to generate accurate word embeddings. ________________________________________________________________________________ Microsoft Teams meeting Join on your computer or mobile app Click here to join the meeting <https://teams.microsoft.com/l/meetup-join/19%3ameeting_ZDE4YWYxNmEtZTFlMC00…> Learn more <https://aka.ms/JoinTeamsMeeting> | Meeting options <https://teams.microsoft.com/meetingOptions/?organizerId=ac48eccb-4345-40d8-…> -- Fabrizio Leisen Professor of Statistics University of Nottingham School of Mathematical Sciences University Park, Nottingham, NG7 2RD, UK http://sites.google.com/site/fabrizioleisen/

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Pisa Online Seminars - Lorenzo Dello Schiavo (Tuesday, Feb. 9 at 14:00)
by Giacomo Filippo Di Gesu 03 Feb '21

03 Feb '21

Dear colleagues, I would like to invite you to the following online seminar organized by the Probability group of the University of Pisa. The talk will be accessible under the link Click here to join the meeting<https://teams.microsoft.com/l/meetup-join/19%3A17115d7f6ef44c5e91974362906c…> Best regards, Giacomo Tuesday, Feb. 9, 14:00 Speaker: Lorenzo Dello Schiavo (IST Austria) Title: The Dirichlet—Ferguson Diffusion on the space of probability measures over a closed Riemannian manifold (1811.11598) Abstract: We construct a diffusion process on the L^2-Wasserstein space P_2(M) over a closed Riemannian manifold M. The process, which may be regarded as a candidate for the Brownian motion on P_2(M), is associated with the Dirichlet form induced by the L^2-Wasserstein gradient and by the Dirichlet–Ferguson random measure with intensity the Riemannian volume measure on M. We discuss the closability of the form via an integration-by-parts formula, which allows explicit computations for the generator and a specification of the process via a measure-valued SPDE. We comment how the construction is related to previous work of von Renesse–Sturm on the Wasserstein Diffusion and of Konarovskyi–von Renesse on the Modified Massive Arratia Flow. ************************ Giacomo Di Gesù Dipartimento di Matematica Università di Pisa Largo Bruno Pontecorvo 5 56127 - Pisa, Italy giacomo.digesu(a)unipi.it<mailto:giacomo.digesu@unipi.it> https://sites.google.com/site/giacomodigesu/

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Seminario on-line di G. Peccati a Milano-Bicocca (10 feb 2021)
by Francesco Caravenna 03 Feb '21

03 Feb '21

Ho il piacere di annunciare il seguente seminario di Giovanni Peccati (Luxembourg University): "Stopping sets and phase transitions on the Poisson space" Mercoledì 10 febbraio 2021 ore 14:30 Seguono il riassunto e il link Zoom. Tutti gli interessati sono invitati a partecipare. Francesco Caravenna %%%%%%%%%%%%%%%%%%%%%%%%%%%% Link Zoom: https://us02web.zoom.us/j/81567245594?pwd=OFJwNzNMYmRxYXl6T0srU2gyamdWZz09 (ID: 815 6724 5594 Passcode: 969423) Abstract: I will discuss several refinements of the Poincaré inequality on the Poisson space, based on the use of "restricted hypercontractivity", stopping sets and continuous-time decision trees. One of the main estimates presented in my talk corresponds to an intrinsic, infinite-dimensional version of the "OSSS inequality" (O'Donnel, Saks, Schramm, Servedio, 2006), allowing one to control the fluctuations of a given functional by means of its decision tree complexity. The research discussed in my talk is strongly motivated by the analysis of sharp phase transitions in continuum percolation models. If time permits, I will also discuss an intrinsic version of the Schramm-Steif inequality on the Poisson space - which is particularly adapted to capture noise sensitivity at criticality. Based on joint works with G. Last and D. Yogeshwaran (2021), and with I. Nourdin and X. Yang (2019). %%%%%%%%%%%%%%%%%%%%%%%%%%%% -- _________________________________________ Francesco Caravenna Dipartimento di Matematica e Applicazioni Università degli Studi di Milano-Bicocca Via Cozzi 55, 20125 Milano, Italy http://www.matapp.unimib.it/~fcaraven/ _________________________________________

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Fwd: [owps] One World Probability Seminar Thursday February 4, 2021
by Faggionato, Alessandra 03 Feb '21

03 Feb '21

Buongiorno giro l'annuncio del OWPS di domani Grazie Saluti Alessandra ---------- Forwarded message --------- Da: One World Probability <ow.probability(a)gmail.com> Date: mer 3 feb 2021 alle ore 12:12 Subject: [owps] One World Probability Seminar Thursday February 4, 2021 To: <owps(a)lists.bath.ac.uk> Tomorrow's speakers in the One World Probability Seminar are (Note: all times are in UTC. *Due to time changes, you should check what that translates to in your location*) ------------------------------------------------ (14:00-15:00 UTC) Speaker: Davide Gabrielli (L'Aquila) Title: Soliton decomposition of the Box Ball System Abstract: The Box-Ball System (BBS) is a one-dimensional cellular automaton on the integer lattice. It is related to the Korteweg-de Vries (KdV) equation and exhibits solitonic behaviour. It was introduced by Takahashi and Satsuma who identified conserved quantities called solitons. We illustrate equivalent definitions of the system and we describe the Takahashi and Satsuma algorithm of identification of the solitons. We propose a different soliton decomposition which is equivalent to a branch decomposition of the tree associated to the excursions of the walk constructed starting from the ball configuration. Ferrari, Nguyen, Rolla and Wang (FNRW) map a ball configuration to a family of "soliton components" indexed by the soliton sizes. Building over this decomposition, we give an explicit construction of a large family of invariant measures for the BBS that are also shift invariant, including Markov and Bernoulli product measures. The construction is based on the concatenation of iid excursions in the associated walk trajectory. (15:00-16:00 UTC) Speaker: Pablo A. Ferrari (Universidad de Buenos Aires) Title: Soliton dynamics in the Box-Ball system Abstract: A soliton is a solitary wave that in absence of other solitons moves at speed proportional to its size and conserves shape and speed even after colliding with other solitons. The FNRW soliton decomposition of a ball configuration is based on the k-slots, boxes determined by the configuration where size k solitons can be inserted. The components of a configuration η are denoted ζk∈N^Z, where ζk(i)=n means that there are n size k solitons in slot i of the kth component. The dynamics of the components reduce to a hierarchic translation; the shift of a component depending on the larger size components. Shift invariant ball distributions with independent components are time invariant for the dynamics. For space-ergodic initial distributions, the asymptotic speeds of solitons are shown to satisfy an universal system of linear equations related to the Generalized Gibbs Ensemble hydrodynamics. ------------------------------------------------ The zoom link will appear the day before on the OWPS website: https://www.owprobability.org/one-world-probability-seminar <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.owpro…> It can also be directly accessed through the link below: https://uniroma1.zoom.us/j/89695339114?pwd=QTdVVC9ybjNoaVlTKy9CbGJBUEVsQT09 <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Funiroma1.…> Meeting-ID: 896 9533 9114 Passcode: 246188 Please feel free to circulate this email. We hope to see you all tomorrow! One World Probability Team -- ************************************************* Prof. Alessandra Faggionato http://www1.mat.uniroma1.it/~faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 5, Phone (0039) 06 49913252 *************************************************

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Tomas Bjork
by Tiziano Vargiolu 01 Feb '21

01 Feb '21

Carissimi, e' con gran dolore che vi dobbiamo informare del fatto che Tomas Bjork e' mancato ieri 31 gennaio. Ecco le parole di Catriona Byrne, Editorial Director a Springer: We mourn the passing, on January 31, 2021, as a result of serious illness, of Tomas Bjork, emeritus professor of Mathematical Finance of the Stockholm School of Economics, and with it the loss of an esteemed scientist, adviser, colleague, friend. Cordiali saluti a tutti Wolfgang Runggaldier Tiziano Vargiolu -------------------------------------------------------------------------- Tiziano Vargiolu Dipartimento di Matematica Phone: +39 049 8271383 Universita' di Padova Fax: +39 049 8271428 Via Trieste, 63 E-mail: vargiolu(a)math.unipd.it I-35121 Padova (Italy) WWW: http://www.math.unipd.it/~vargiolu --------------------------------------------------------------------------

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Graduate course in February
by Stefania Ugolini 30 Jan '21

30 Jan '21

Università degli Studi di Milano: PhD program Stochastic quantization of the Euclidean quantum field theory Lecturer: Prof. Dr. Massimiliano Gubinelli The goal of Euclidean quantum field theory is to build probability measures on the space of distributions satisfying properties such as Euclidean invariance, reflection positivity and non-triviality, that allows to recover an interacting relativistic quantum field satisfying Wightman axioms. Stochastic quantization, first proposed by Parisi–Wu and Nelson, is a method of construction of such measures via stationary solutions of a stochastic partial differential equations driven by additive Gaussian white noise. In this course we will learn about the stochastic quantization of the Euclidean quantum field theory of a scalar boson with quartic interaction and its main properties. We introduce the Φ43 measure as the limit of the invariant measure of a finite dimensional system of stochastic differential equations. The proof proposed uses several analytic and probabilistic techniques, such as white noise analysis, weighted Besov spaces on lattice and paraproducts, which also find applications in other problems arising in the study of deterministic and stochastic singular differential equations. All these tools and ideas will be gradually introduced and explained during the lectures. The course is as much as possible self-contained and requires as a prerequisite only basic knowledge of stochastic and functional analysis. Scheduling: February 15, 16, 18, 22, 25 from 10:00 to 12:00 and from 14:00 to 16:00 Online via Zoom (see the following link) Course page: https://www.iam.uni-bonn.de/abteilung-gubinelli/sq-lectures-milan-ws2021 <signaturebeforequotedtext></signaturebeforequotedtext><signatureafterquotedtext></signatureafterquotedtext>

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Seminario Antonio Agresti RM1
by Nappo, Giovanna 29 Jan '21

29 Jan '21

SEMINARIO DI PROBABILITA' E STATISTICA MATEMATICA Dipartimento di Matematica "Guido Castelnuovo" Lunedì 08 febbraio 2021 Ore 16:00 (modalità telematica con Zoom) Antonio AGRESTI (Dottorato in Matematica, Sapienza Università di Roma) Nonlinear parabolic stochastic evolution equations in critical spaces. Abstract: Critical spaces for non-linear equations are important due to scaling invariance, and in particular this plays a central role in fluid dynamics. In this talk we introduce and discuss local/global well-posedness, and blow-up criteria for stochastic parabolic evolution equations in critical spaces. Our results extend the celebrated theory of Prüss, Wilke and Simonett for deterministic PDEs. Due to the presence of noise it is unclear that a stochastic version of the theory is possible, but as we will show a suitable variation of the theory remains valid. We will also explain several features which are new in both the deterministic and stochastic framework. In particular, we discuss a new bootstrap method to prove regularization of solutions to (S)PDEs, which can also be applied in critical situations. Our theory is applicable to a large class of semilinear and quasilinear parabolic problems which includes many of the classical SPDE. During the talk we give applications to stochastic reaction-diffusion equations and stochastic Navier-Stokes equations with gradient noise. This is a joint work with Mark Veraar (TU Delft). Link Zoom https://uniroma1.zoom.us/j/81656265460?pwd=UmlZQzBDY2VmSUwrNitZbkNWMERIdz09

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MSP 2021
by Pietro Rigo 29 Jan '21

29 Jan '21

We are pleased to announce the second edition of the Workshop on The Mathematics of Subjective Probability (MSP 2021) that will take place at the University of Milano-Bicocca on September 1-3, 2021. As in the preceding edition, this workshop is intended as a forum for scholars of different fields who are interested in modeling probability as part of the behaviour of individuals rather than on a purely axiomatic basis. Papers on Probability Theory are obviously welcome as well as papers from Economic Theory, Game Theory, Statistics and Mathematics. We intend to hold the conference in the classical form, with speakers attending physically although, as of now, we cannot exclude that at least in part it will have to take place remotely The following speakers have accepted our invitation to deliver a talk: * Nabil Al-Najjar, Northwestern University; * Pierpaolo Battigalli, Università Bocconi; * K.P.S. Bhaskara-Rao, Indiana University Northwest; * Giulianella Coletti, Università di Perugia; * Massimo Marinacci, Università Bocconi; * Frank Riedel, University of Bielefeld. We invite all interested researchers to submit their papers for presentation. Papers should be submitted electronically via e-mail at the address MSP2021(a)unimib.it<mailto:MSP2021@unimib.it> . Submission will be possible until July 1st; notification of acceptance will be received by july 15th. For all details concerning the conference, please refer to the website msp2021.campus.unimib.it<https://www.msp2021.campus.unimib.it/>. Gianluca Cassese, Pietro Rigo, Barbara Vantaggi

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Seminar announcement
by Marco Scarsini 29 Jan '21

29 Jan '21

*Thursday, 4 February, 17:00 CET* *Annie Liang**, *Northwestern University Dynamically Aggregating Diverse Information <http://mailsender.luiss.it/lists/lt.php?id=cRpQAAYCSAUGBgBOVgFdBQs> Discussants: Jacopo Perego and Weijie Zhong The paper can be found here <https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3385451>. This is the link to the Virtual Room <http://mailsender.luiss.it/lists/lt.php?id=cRpQAAYBSAUGBgBOVgFdBQs>. The schedule of the upcoming seminars can be found here <https://economiaefinanza.luiss.it/en/seminari/prossimi-seminari>. If you want to receive announcements of future seminars, please fill out this form <https://docs.google.com/forms/d/e/1FAIpQLSeDxM-M5ogG43elgjC-lNCp0BDhISiZHG0…> . ******************************************************* Marco Scarsini Dipartimento di Economia e Finanza Luiss Viale Romania 32 00197 Roma, ITALY URL: http://docenti.luiss.it/scarsini/

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Fwd: [owps] One World Probability Seminar Thursday January 28, 2021
by Faggionato, Alessandra 28 Jan '21

28 Jan '21

inoltro per problemi tecnici grazie alessandra ---------- Forwarded message --------- Da: One World Probability <ow.probability(a)gmail.com> Date: gio 28 gen 2021 alle ore 15:03 Subject: Re: [owps] One World Probability Seminar Thursday January 28, 2021 To: <owps(a)lists.bath.ac.uk> Dear All, If you have trouble joining the meeting using the zoom link below, please try using the link on the website. We apologise for any problems. Amanda and Alessandra On Wed, Jan 27, 2021 at 8:26 AM One World Probability < ow.probability(a)gmail.com> wrote: > Tomorrow's speakers in the One World Probability Seminar are > (Note: all times are in UTC. *Due to time changes, you should check what > that translates to in your location*) > ------------------------------------------------ > > (14:00-15:00 UTC) Speaker: Cristina Toninelli (Université Paris Dauphine) > Title: Universality results for interacting particle systems with > dynamical constraints > Abstract: We introduce the kinetically constrained models (KCM), a class > of interacting particle systems with a simple spin flip dynamics subject to > local dynamical constraints. Each vertex is resampled (independently) at > rate one by tossing a (1-q)-coin iff a certain neighbourhood of the vertex > contains no particles. In other words, the holes (empty vertices) act as > facilitating sites. When q shrinks to 0, the presence of the constraints > gives rise to glassy dynamics, in particular to an anomalous divergence of > the characteristic time scales. Thus, KCM are extensively used in physics > literature to model the liquid-glass transition, a longstanding open > problem in condensed matter physics. > > We focus on the behavior of E(T_0), the mean over the stationary process > of the first time at which the origin becomes empty. Our results establish > the universality classes of KCM in two dimensions: we group all possible > constraints into distinct classes with all models in a class featuring the > same divergence for E(T_0) as q->0. Within each class, we present an > efficient relaxation mechanism that involves the cooperative motion of > large rare patches of empty sites and we use it to determine matching upper > and lower bounds for E(T_0). > > Joint work with L.Marêché, I.Hartarsky, F.Martinelli and R.Morris > > (15:00-16:00 UTC) Fabio Martinelli (Università Roma Tre) > Title: Sharp threshold for the FA-2f kinetically constrained model > Abstract: > The Fredrickson-Andersen 2-spin facilitated model (FA-2f) on the > d-dimensional lattice, d ≥ 2, is a paradigmatic interacting particle system > with kinetic constraints (KCM) featuring "dynamical facilitation", an > important mechanism in condensed matter physics. In FA-2f a site may change > its state only if at least two of its nearest neighbors are empty. The > process, while reversible w.r.t. a product Bernoulli measure, has > degenerate jumps rates and it is non-attractive, with an anomalous > divergence of characteristic time scales as the density q of the empty > sites tends to zero. A natural random variable encoding the above features > is the first time T at which the origin becomes empty for the stationary > process. Our main result is the sharp threshold T ≍ Exp[ d > λ(d,2)/q^(1/(d-1)) ] w.h.p. as q → 0, with λ(d,2) the threshold constant > for the 2-neighbor bootstrap percolation, the monotone deterministic > cellular automaton counterpart of FA-2f. This is the first sharp result for > a critical KCM. Besides settling various controversies accumulated in the > physics literature over the last four decades, our novel techniques enable > completing the recent ambitious program on the universality phenomenon for > critical KCM and establishing sharp thresholds for other two-dimensional > KCM. > > Joint work with I. Hartarski and C. Toninelli > > ------------------------------------------------ > > The zoom link will appear the day before on the OWPS website: > https://www.owprobability.org/one-world-probability-seminar > <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.owpro…> > > It can also be directly accessed through the link below: > https://uniroma1.zoom.us/j/83154591101?pwd=dkZyekxwa1Z1b2w2bW5SOWY3L21Xdz09 > <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Funiroma1.…> > > Please feel free to circulate this email. > > We hope to see you all tomorrow! > One World Probability Team > -- ************************************************* Prof. Alessandra Faggionato http://www1.mat.uniroma1.it/~faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 5, Phone (0039) 06 49913252 *************************************************

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ABC in Svalbard, 12-13 April, 2021 - Mirror in Grenoble
by Julyan Arbel 27 Jan '21

27 Jan '21

Dear all, The approximate Bayesian computation (ABC) conference is planned to be held in Svalbard on 12-13 April, 2021, in a hybrid way: on top to the on-site meeting, there will be two physical mirrors (one in Brisbane and one in Grenoble), and all talks will be live-streamed. If you wish to participate to the virtual event, stay tuned for further information on: https://sites.google.com/view/abcinsvalbard/home If you consider participating to Grenoble mirror (free of charge), please fill the form here: https://sites.google.com/view/abcinsvalbard-grenoble-mirror/ in order to receive further notice about the organisation. Best, Julyan Arbel and Christian Robert

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Padova Online Seminar by Michele Salvi (Università di Roma Tor Vergata) [Friday, Feb. 05 at 14.30]
by alessandra bianchi 27 Jan '21

27 Jan '21

Dear Colleagues, We would like to invite you to the following Probability seminar that will take place on February 05 at 14.30 by the zoom platform. ________________________________________________________ Speaker: Michele Salvi (Università di Roma Tor Vergata) Title: Scale-free percolation in continuous space 05 FEBRUARY (Friday) - 14:30 zoom link: TBA (available on the webpage https://www.math.unipd.it/~bianchi/seminari/ ) Abstract: The scale-free percolation random graph features three fundamental properties that are often present in large real-world structures (social networks, communication networks, inter-banking systems and so on), but which are never present at once in classical models: (1) Scale-free: the degree of the nodes follows a power law; (2) Small-world: two nodes are typically at a very small graph distance; (3) Positive clustering coefficient: two nodes with a common neighbour have a good chance to be linked. We study a continuous version of scale-free percolation and its possible application to the statistical analysis of a dataset provided by the French Ministry of Agriculture. We discuss some stochastic processes (random walks and particle systems) on these kinds of structures with the final goal of understanding how an epidemic would spread. -- Alessandra Bianchi Dip. di Matematica Università di Padova Via Trieste, 63 - 35121 Padova, Italy phone: +39 049 827 14 06 fax: +39 049 827 14 28 e-mail: bianchi(a)math.unipd.it http://www.math.unipd.it/~bianchi/

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Fwd: [owps] One World Probability Seminar Thursday January 28, 2021
by Faggionato, Alessandra 27 Jan '21

27 Jan '21

Buongiorno, vi inoltro l'annuncio del OWPS di domani. Saluti Alessandra ---------- Forwarded message --------- Da: One World Probability <ow.probability(a)gmail.com> Date: mer 27 gen 2021 alle ore 09:28 Subject: [owps] One World Probability Seminar Thursday January 28, 2021 To: <owps(a)lists.bath.ac.uk> Tomorrow's speakers in the One World Probability Seminar are (Note: all times are in UTC. *Due to time changes, you should check what that translates to in your location*) ------------------------------------------------ (14:00-15:00 UTC) Speaker: Cristina Toninelli (Université Paris Dauphine) Title: Universality results for interacting particle systems with dynamical constraints Abstract: We introduce the kinetically constrained models (KCM), a class of interacting particle systems with a simple spin flip dynamics subject to local dynamical constraints. Each vertex is resampled (independently) at rate one by tossing a (1-q)-coin iff a certain neighbourhood of the vertex contains no particles. In other words, the holes (empty vertices) act as facilitating sites. When q shrinks to 0, the presence of the constraints gives rise to glassy dynamics, in particular to an anomalous divergence of the characteristic time scales. Thus, KCM are extensively used in physics literature to model the liquid-glass transition, a longstanding open problem in condensed matter physics. We focus on the behavior of E(T_0), the mean over the stationary process of the first time at which the origin becomes empty. Our results establish the universality classes of KCM in two dimensions: we group all possible constraints into distinct classes with all models in a class featuring the same divergence for E(T_0) as q->0. Within each class, we present an efficient relaxation mechanism that involves the cooperative motion of large rare patches of empty sites and we use it to determine matching upper and lower bounds for E(T_0). Joint work with L.Marêché, I.Hartarsky, F.Martinelli and R.Morris (15:00-16:00 UTC) Fabio Martinelli (Università Roma Tre) Title: Sharp threshold for the FA-2f kinetically constrained model Abstract: The Fredrickson-Andersen 2-spin facilitated model (FA-2f) on the d-dimensional lattice, d ≥ 2, is a paradigmatic interacting particle system with kinetic constraints (KCM) featuring "dynamical facilitation", an important mechanism in condensed matter physics. In FA-2f a site may change its state only if at least two of its nearest neighbors are empty. The process, while reversible w.r.t. a product Bernoulli measure, has degenerate jumps rates and it is non-attractive, with an anomalous divergence of characteristic time scales as the density q of the empty sites tends to zero. A natural random variable encoding the above features is the first time T at which the origin becomes empty for the stationary process. Our main result is the sharp threshold T ≍ Exp[ d λ(d,2)/q^(1/(d-1)) ] w.h.p. as q → 0, with λ(d,2) the threshold constant for the 2-neighbor bootstrap percolation, the monotone deterministic cellular automaton counterpart of FA-2f. This is the first sharp result for a critical KCM. Besides settling various controversies accumulated in the physics literature over the last four decades, our novel techniques enable completing the recent ambitious program on the universality phenomenon for critical KCM and establishing sharp thresholds for other two-dimensional KCM. Joint work with I. Hartarski and C. Toninelli ------------------------------------------------ The zoom link will appear the day before on the OWPS website: https://www.owprobability.org/one-world-probability-seminar <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.owpro…> It can also be directly accessed through the link below: https://uniroma1.zoom.us/j/83154591101?pwd=dkZyekxwa1Z1b2w2bW5SOWY3L21Xdz09 <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Funiroma1.…> Please feel free to circulate this email. We hope to see you all tomorrow! One World Probability Team -- ************************************************* Prof. Alessandra Faggionato http://www1.mat.uniroma1.it/~faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 5, Phone (0039) 06 49913252 *************************************************

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Seminario Prisma
by Domenico Marinucci 26 Jan '21

26 Jan '21

Cari colleghi Lunedì prossimo avrà inizio il ciclo mensile di seminari online promosso dal Gruppo UMI PRISMA: 1 Febbraio 2021, ore 16:00-18:00: Franco Flandoli, Mario Maurelli TITLE: Regularization by noise ABSTRACT: The presence of the irregular fluctuations of a noise sometimes improves the theory of differential equations, ordinary or partial, a phenomenon today called "regularization by noise". This joint talk will introduce the problem in finite dimensions, by some classical and some more recent examples and results. Then it moves to SPDEs, where the results are mostly recent and under investigation. The different roles of additive noise and multiplicative transport type noise, the latter with its fluid mechanic flavour, will be described. Collegamento Teams: https://teams.microsoft.com/l/meetup-join/19%3a667d2414be564c5d8fba30acffeb… Grazie per l'attenzione e scusate le ripetizioni, Domenico Marinucci e Claudia Ceci -- @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ Domenico Marinucci Dipartimento di Matematica Università di Roma Tor Vergata https://www.mat.uniroma2.it/~marinucc/ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

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Annuncio seminario - 28 gennaio ore 14:00 - Alessio Farcomeni
by Anna Paganoni 25 Jan '21

25 Jan '21

Buongiorno, ricordo il seguente Seminario MOX on-line di giovedì organizzato dal gruppo Stat@MOX. 28.1, ore 14:00 Link: https://mox.polimi.it/elenco-seminari/?id_evento=2001&t=763721 Speaker: Alessio Farcomeni, Università Roma Tor Vergata Titolo: Nowcasting the Italian epidemic outbreak of SARS-CoV-2 Abstract: In the talk, we briefly discuss the main epidemiological features of SARS-CoV-2 one year into the pandemic, giving also a short account of the public data available for Italy and of the main limits of lay analyses. We then discuss an accurate method for short-term forecasting ICU occupancy at local level. Our approach is based on an optimal ensemble of two simple methods: a generalized linear mixed regression model which pools information over different areas, and an area-specific non-stationary integer autoregressive methodology. Optimal weights are estimated using a leave-last-out rationale. Daily predictions between February 24th and November, 27th 2020 have a median error of 3 beds (third quartile: 8) at regional level, with coverage of 99% prediction intervals that exceeds the nominal one. Finally we present a different method based on a modified non-linear GLM for each indicator, including the potential effect of exogenous variables, based on appropriate distributional assumptions and a logistic-type growth curve. This allows us to accurately predict important characteristics of the epidemic (e.g., peak time and height). Based on joint works with Pierfrancesco Alaimo di Loro, Fabio Divino, Giovanna Jona Lasinio, Gianfranco Lovison, Antonello Maruotti, Marco Mingione Contatto: francesca.ieva(a)polimi.it Buona giornata Anna Maria Paganoni -- Anna Maria Paganoni MOX - Modeling and Scientific Computing Dipartimento di Matematica "F. Brioschi" Politecnico di Milano Piazza Leonardo da Vinci, 32 I-20133 Milano - Italy tel. +39 02 2399 4574 fax. +39 02 2399 4568 e.mail: anna.paganoni(a)polimi.it

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