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

10 Mar '21

Buongiorno inoltro l'annuncio per il OWPS di domani, che sarà relazionato alla biologia. Saluti Alessandra ---------- Forwarded message --------- Da: One World Probability <ow.probability(a)gmail.com> Date: mer 10 mar 2021 alle ore 09:32 Subject: [owps] One World Probability Seminar Thursday March 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: Viet Chi Tran (Université Gustave Eiffel) Title: Limit Theorems for Historical Particle Systems Abstract: To describe the evolving phylogenies of a birth and death process with trait structure and ecological interactions, we build a historical process inspired by works by Dawson and Perkins (1991 and 1995): it is a càdlàg process whose value at time t is a measure on lineages stopped at this time, i.e. paths describing the trait ancestries of the individuals living at time t. The dynamics may depend on past traits and allows interactions between individuals through their lineages. We establish the convergence of the individual-based birth-death process to a nonlinear historical superprocess, under the assumptions of large populations, small individuals and allometric demographies. The limit is described here by a macroscopic martingale problem. Because of the interactions, the branching property fails and we use fine couplings between our population and independent branching particles. This is a joint work with Sylvie Méléard. (15:00-16:00 UTC) Speaker: Sylvie Méléard (École Polytechnique, Paris) Title: Historical Processes and Dynamics of Phylogenies in a Population with Climate Change Abstract: We investigate in a simple model how the phylogenies of living individuals are shaped by the adaptation to a varying environment. In this model, the individuals are characterised by one-dimensional real traits (or positions). The stochastic individual-based birth-death process depends on a time-changing growth rate that shifts the optimal trait to the right and depends on a nonlinear logistic competition term. The macroscopic behaviour is described by a PDE that admits a unique positive stationary solution. We are interested here in the ancestral lineages of the living individuals in the stationary regime. The dynamic of these lineages is modelled by a historical process, approximatively close to a similar one with non-linearity frozen to its stationary value. We then use a many-to-one identity together with Feynman-Kac's formula and fine stochastic calculus to completely describe the limiting distribution, in large populations, of the path of an individual drawn at random at a given time. This path, in reversed time, is approximated by a simple Ornstein-Uhlenbeck. It shows how the lagged bulk of the present population stems from ancestors once optimal in trait but still in the tail of the trait distribution in which they lived. This talk is based on a joint work with Vincent Calvez, Benoit Henry and Viet Chi Tran. ------------------------------------------------ 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/86028841260?pwd=bUxyVUYzSjY5dDR4d3krb2lDTHZDQT09 <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Funiroma1.…> Meeting-ID: 860 2884 1260 Passcode: 868252 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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Fwd: [umr8050] Allocations de Master Bézout : ouverture de la nouvelle campagne de recrutement
by Lucia Caramellino 09 Mar '21

09 Mar '21

Ricevo ed inoltro. Buona giornata, Lucia +++++++++++++++++++++++++++++++++ Lucia Caramellino Dipartimento di Matematica Università di Roma “Tor Vergata” Web: http://www.mat.uniroma2.it/~caramell De: "raphael danchin" <raphael.danchin(a)u-pec.fr <mailto:raphael.danchin@u-pec.fr>> À: "umr8050" <umr8050(a)listes.math.cnrs.fr <mailto:umr8050@listes.math.cnrs.fr>> Envoyé: Mardi 9 Mars 2021 08:51:51 Objet: [umr8050] Allocations de Master Bézout : ouverture de la nouvelle campagne de recrutement Dear colleague, The 2021-2022 hiring campaign for international Bézout master's scholarships is open until May 21. This year, we will be able to accept more applications than usual (about 10, compared to 7 usually). Bézout Master program is directed towards excellent students in mathematics or computer science (or both) from foreign institutions willing to pursue their studies in Université Paris-Est at the master's level. The laureates will receive about 1300 € per month over 11 months (pending approval of the University Executive Board) and will be proposed a room on the campus. Furthermore, the best students will then be invited to join the PhD program of the Doctoral School MSTIC (Mathematics, Sciences and Information and Communication Technology). A joint supervision with the student's national doctoral framework, leading to both PhD grades, is possible. The details of the program can be found here: http://bezout.univ-paris-est.fr/masters-scholarships/ <http://bezout.univ-paris-est.fr/masters-scholarships/> . From the same webpage, a link to the application form is available; the deadline will be May 21. On April 27 and 30, we plan to hold two online presentations of the Bézout master's program and scholarships, followed by a session of questions and answers; potential applicants should express their interest (without commitment to attend), so that we can send them the credentials for the meeting; see the webpage. A description of the activities of the Bézout Labex can be found in the leaflet at http://bezout.univ-paris-est.fr/wp-content/uploads/2020/11/bezout-leaflet.p…. One can also send you a few printed leaflets at your postal address. Contact: Raphaël Danchin <danchin(a)u-pec.fr <mailto:danchin@u-pec.fr>>

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Webinar Yi Yu @Bocconi
by Giacomo Zanella 09 Mar '21

09 Mar '21

We announce the following DEC Statistics webinar: Date: Thursday, March 11, h17:00 (Italy time) Speaker: Yi Yu (University of Warwick) Title: Functional Linear Regression with Mixed Predictors Abstract: We study a functional linear regression model that deals with functional responses and allows for both functional covariates and high-dimensional vector covariates. The proposed model is flexible and nests several functional regression models in the literature as special cases. Based on the theory of reproducing kernel Hilbert spaces (RKHS), we propose a penalized least squares estimator that can accommodate functional variables observed on discrete grids. Besides the conventional smoothness penalties, a group Lasso-type penalty is further imposed to induce sparsity in the high-dimensional vector predictors. We derive finite sample theoretical guarantees and show that the excess prediction risk of our estimator is minimax optimal. Furthermore, our analysis reveals an interesting phase transition phenomenon that the optimal excess risk is determined jointly by the smoothness and the sparsity of the functional regression coefficients. A novel efficient optimization algorithm based on iterative coordinate descent is devised to handle the smoothness and sparsity penalties simultaneously. Simulation studies and real data applications illustrate the promising performance of the proposed approach compared to the state-of-the-art methods in the literature. The webinar will be on zoom at: https://zoom.us/j/95651583993?pwd=ZnZjaGxvZWVLdGFSL0dGTk43eU9Idz09 Meeting ID: 956 5158 3993 Passcode: 568279 Kind regards, Giacomo Zanella

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Seminario di Sandra Cerrai in Bicocca (circa)
by Gianmario Tessitore - UNIMIB 08 Mar '21

08 Mar '21

Ho il piacere di annunciare il seguente seminario, da remoto, di Sandra Cerrai (University of Maryland): "Sull'approssimazione di Smoluchowski-Kramers per SPDE con termine di smorzamento variabile" Lunedì 15 Marzo 2021 ore 17:30 Seguono il riassunto e il link Zoom. Tutti gli interessati sono invitati a partecipare. Gianmario Tessitore %%%%%%%%%%%%%%%%%%%%%%%%%%%% Link Zoom: https://us02web.zoom.us/j/81619958846?pwd=V1BQemR1L01aMzJHMGVFOWg1WVR3UT09 (ID: 816 1995 8846 Passcode: 133769) Abstract: Darò una panoramica su una serie di risultati sul comportamento asintotico, rispetto alla massa piccola, di sistemi stocastici infinito-dimensionali descritti da equazioni delle onde smorzate perturbate da un rumore Gaussiano. In particolare, concentrerò la mia attenzione al caso in cui lo smorzamento dipende dallo stato. %%%%%%%%%%%%%%%%%%%%%%%%%%%% -- Gianmario Tessitore Dipartimento di Matematica e Applicazioni Università degli Studi di Milano-Bicocca

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Fwd: PhD position in Statistics at University of Amsterdam
by Marco Formentin 08 Mar '21

08 Mar '21

Ricevo e inoltro. Buona giornata, Marco Formentin ----- Forwarded message from Eni Musta <e.musta(a)uva.nl> ----- Date: Fri, 5 Mar 2021 12:20:58 +0000 From: Eni Musta <e.musta(a)uva.nl> Dear colleagues, Applications are invited for a PhD position in Statistics at the Korteweg-de Vries Institute for Mathematics, University of Amsterdam. The PhD candidate will be supervised by Eni Musta and will work on the project "Shape-constrained estimation in survival analysis". The project aims at development of statistical methodology and theory for cure models using shape-constrained techniques. We are looking for candidates with a strong background in Mathematical Statistics/Statistics or Probability and interest in statistical methodology/theory. More details about the project and the application procedure can be found at: https://www.uva.nl/shared-content/uva/en/vacancies/2021/03/21-144-phd-stude… https://www.academictransfer.com/nl/298398/phd-student-in-statistics/ Best regards, Eni Musta ----- End forwarded message -----

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Seminar announcement
by Marco Scarsini 05 Mar '21

05 Mar '21

*Thursday, 11 March, 17:00 CET* *Claire Mathieu**, *École Normale Supérieure Two-Sided Matching Markets with Correlated Random Preferences have Few Stable Pairs <http://mailsender.luiss.it/lists/lt.php?id=cRpQAQcLSAUFCQ1OVgFdBQs> Discussants: Andrés Cristi and Josué Ortega The paper can be found here <https://arxiv.org/abs/1904.03890>. 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/seminari-2021>. 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: Vacancies within NETWORKS, The Netherlands: 6 PhDs in Stochastics and Algorithms, deadline March 31, 2021
by pietro caputo 04 Mar '21

04 Mar '21

Ricevo e inoltro: ---------- Forwarded message --------- From: Avena, L. <l.avena(a)math.leidenuniv.nl> Date: Thu, Mar 4, 2021, 18:26 Subject: Vacancies within NETWORKS, The Netherlands: 6 PhDs in Stochastics and Algorithms, deadline March 31, 2021 To: Wolfgang Koenig <koenig(a)wias-berlin.de>, Francis Comets < comets(a)math.univ-paris-diderot.fr>, Cristina TONINELLI < toninelli(a)ceremade.dauphine.fr>, Fabio Toninelli < toninelli(a)math.univ-lyon1.fr>, pietro caputo <caputo(a)mat.uniroma3.it>, Fabio Martinelli <martinelli.fabio(a)gmail.com>, JProf Florian Voellering < Florian.Voellering(a)math.uni-leipzig.de>, Matteo Quattropani < matteo.quattropani(a)gmail.com>, Paolo MILANESI <paolo.MILANESI(a)univ-amu.fr>, FABIENNE CASTELL. AMU. <fabienne.castell(a)univ-amu.fr>, Clothilde Melot < clothilde.melot(a)univ-amu.fr>, A. Gaudilliere < alexandre.gaudilliere(a)math.cnrs.fr>, Augusto <augusto(a)impa.br>, Faggionato, Alessandra <faggiona(a)mat.uniroma1.it>, Conrado Costa <conradofpc(a)gmail.com>, Diego Garlaschelli <diego.garlaschelli(a)imtlucca.it>, Daniel Valesin < valesin(a)gmail.com>, Dirk Erhard <erharddirk(a)gmail.com>, Tertuliano Franco < francotertu(a)gmail.com>, F.H.J.Redig(a)tudelft.nl <F.H.J.Redig(a)tudelft.nl>, Otávio Menezes <ommenezes(a)gmail.com>, Jon Peterson <peterson(a)purdue.edu>, Vincent Tassion <vincent.tassion(a)math.ethz.ch>, 千野由喜 < y.chino.leiden(a)gmail.com>, Francesca Romana Nardi < francescaromana.nardi(a)unifi.it>, Patricia Goncalves <mophinha(a)gmail.com>, landim(a)impa.br <landim(a)impa.br>, Maria Eulalia Vares <eulaliavares(a)gmail.com>, rodrigo.bissacot(a)gmail.com <rodrigo.bissacot(a)gmail.com>, Rogerio Alves < rgalvess(a)gmail.com>, Arnaud Le Ny <arnaud.le-ny(a)u-pec.fr>, Nicolas Tremblay <nicolas.tremblay(a)gipsa-lab.grenoble-inp.fr>, Simon Barthelmé < simon.barthelme(a)gipsa-lab.fr>, Marco Romito <marco.romito(a)unipi.it>, Dario Trevisan <dario.trevisan(a)unipi.it>, Giacomo Filippo Di Gesu < giacomo.digesu(a)unipi.it>, alessandra bianchi <bianchi(a)math.unipd.it>, Alessandra Cipriani <A.Cipriani(a)tudelft.nl>, Wioletta Ruszel < w.m.ruszel(a)tudelft.nl>, Christophe Garban <garban(a)math.univ-lyon1.fr>, Christina Goldschmidt <goldschm(a)stats.ox.ac.uk>, christian.maes(a)kuleuven.be <christian.maes(a)kuleuven.be>, Renato Soares Dos Santos <rsd8(a)nyu.edu>, Alexandre Stauffer <astauffer(a)mat.uniroma3.it>, Elisabetta Scoppola < elisabetta.scoppola(a)gmail.com>, Francesco Caravenna < francesco.caravenna(a)unimib.it>, Julián Martínez <julianfm7(a)gmail.com>, Milton D. Jara V. <mjara(a)impa.br>, Hubert Lacoin <hlacoin(a)gmail.com>, quentin.berger(a)sorbonne-universite.fr <quentin.berger(a)sorbonne-universite.fr>, rf87(a)nyu.edu <rf87(a)nyu.edu>, drewitz(a)math.uni-koeln.de < drewitz(a)math.uni-koeln.de>, Ines Armendariz <ines.armendariz(a)gmail.com>, Pablo Ferrari <pagfrr(a)gmail.com>, Lorenzo Zambotti <zambotti(a)lpsm.paris>, bertini(a)mat.uniroma1.it <bertini(a)mat.uniroma1.it> Dear friends and colleagues, I would like to ask you to advertise within your network of potentially interested colleagues and students, 6 PhD positions in Stochastics and Algorithms within the Dutch research project NETWORKS (Leiden, Amsterdam and Eindhoven). More details and the application description can be found at this link: https://www.thenetworkcenter.nl/Open-Positions/openposition/29/6-PhD-Positi… Thanks for the attention and see you hopefully soon. Sincerely, Luca

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2 years postdoctoral research position in Analysis at Bocconi University, Milan
by Marco Alessandro Fuhrman 03 Mar '21

03 Mar '21

Buongiorno. Ricevo e inoltro un avviso su un assegno di ricerca. Cordiali saluti. Marco Fuhrman %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Applications are invited for a 2 years postdoctoral research position in Analysis at Bocconi University, Milan , with a flexible starting date between May and November 2021. The appointment is funded through the PRIN project "Gradient flows, Optimal Transport and Metric Measure Structures" and it will focus on the main topics of the project, with possible applications to PDEs and Machine Learning. This is a research-oriented position at the Bocconi Institute for Data Science and Analytics, with an expected net salary of €25000 per annum and without teaching duties. Additional information and details on the appointment can be found at the Jobmarket website of Bocconi . Applications (see the details in the annou n cement and the application form ) should be sent before noon of March 31, 2021 by email to the Faculty and Staff Administration office . For any further information please write to giuseppe.savare(a)unibocconi.it . Bando (Italian) Announcement Application form Link to the cvgmt website <signatureafterquotedtext></signatureafterquotedtext>

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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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