- Random - Mailing list — Dipartimento di Matematica, UniPI

2 online seminars - Paolo Gibilisco (Roma Tor Vergata) and Cambyse Rouzé (TUM)
by Carbone Raffaella 15 Apr '21

15 Apr '21

Dear colleagues, it is our pleasure to invite you to the following online seminars (in two different days!) Speaker: *Paolo Gibilisco* (Roma Tor Vergata) Title: *Information Geometry: an invitation to the basic results of the subject and to some new perspectives* Time: Monday, *April 19*, 5PM (Italian time) Speaker: *Cambyses Rouzé *(Technische Universität München) Title: *Complete modified logarithmic Sobolev inequalities and quantum Gibbs samplers* Time: Tuesday, *April 20*, 5PM (Italian time) Abstracts follow: one below in this message and one attached. Zoom Link <https://us02web.zoom.us/j/89543157111?pwd=NnAyblhVNkppeERRRFd1VGYwTkMyUT09> (the same for both seminars - ID and passcode below if necessary) The seminars are a satellite activity of the PhD course "Introduction to coercive inequalities with applications in analysis and probability theory" (professor Boguslaw Zegarlinski - Imperial College, London) Following speaker will be: *Giuseppe Savaré* on *April 22*nd, 4PM A specific announcement will be sent in the next days. Best regards, Raffaella Carbone *Cambyse Rouzé - Title and abstract* Title: Complete modified logarithmic Sobolev inequalities and quantum Gibbs samplers Abstract: Since the seminal works of Dobrushin-Shlosman and Stroock-Zegarlinski, equilibrium and out-of-equilibrium properties of classical lattice spin systems are known to be closely related: given a potential, one can construct a Markov process, called Glauber dynamics, whose reversing state coincides with the Gibbs state for the given potential. For these dynamics, Holley and Stroock made the key observation that systems thermalizing in times scaling logarithmically in the system size, a property known as rapid mixing, satisfy exponential decay of correlations at equilibrium. The converse implication, namely that exponential decay of correlations implies rapid mixing, was investigated later on in a series of articles by Zegarlinski and Stroock, who proved the stronger condition of an exponential entropic decay of the dynamics towards the limiting Gibbs measure, also known as logarithmic Sobolev inequality. In this talk, we will prove an extension of the result of Zegarlinski and Stroock to the quantum setting. More precisely, we will show that, given the Gibbs state $\sigma$ of a 2-local commuting Hamiltonian and above a critical temperature, there exists a local quantum Markovian evolution converging to $\sigma$ which satisfies the quantum modified logarithmic Sobolev inequality (MLSI) with a constant that does not depend on the size of the lattice. As a first step towards this proof, we will also provide a proof of the existence of the MLSI for finite dimensional systems coupled to an arbitrarily large, noiseless environment (also known as the complete MLSI constant), a problem that was left open until now. This talk is based on the following papers: https://arxiv.org/abs/2009.11817 https://arxiv.org/abs/2102.04146 -------- Dottorato Matematica is inviting you to a scheduled Zoom meeting. Topic: Seminars April 19 to 22 Time: Apr 19, 2021 05:00 PM Rome Apr 20, 2021 05:00 PM Apr 22, 2021 04:00 PM Please download and import the following iCalendar (.ics) files to your calendar system. Weekly: https://us02web.zoom.us/meeting/tZ0oc-qpqzwrG9W8L60lAyfp8kbqksDUWlwv/ics?ic… Join Zoom Meeting https://us02web.zoom.us/j/89543157111?pwd=NnAyblhVNkppeERRRFd1VGYwTkMyUT09 Meeting ID: 895 4315 7111 Passcode: 029655 One tap mobile +13017158592,,89543157111# US (Washington DC) +13126266799,,89543157111# US (Chicago) Dial by your location +1 301 715 8592 US (Washington DC) +1 312 626 6799 US (Chicago) +1 646 876 9923 US (New York) +1 346 248 7799 US (Houston) +1 408 638 0968 US (San Jose) +1 669 900 6833 US (San Jose) +1 253 215 8782 US (Tacoma) Meeting ID: 895 4315 7111 Find your local number: https://us02web.zoom.us/u/kd3YVb722z -- Raffaella Carbone, PhD Probabilità e Statistica Matematica Dipartimento di Matematica dell'Università degli Studi di Pavia

1 0

post-doc positions call for interest
by Giovanni Sebastiani 15 Apr '21

15 Apr '21

The Istituto per le Applicazioni del Calcolo "Mauro Picone" belonging to the National Research Council of Italy seeks expressions of interest for two post-doc positions of three years starting in September 2021. The post-docs will be involved full time in the interdisciplinary EU research project "WARIFA". The WARIFA primary goal is to define a general personalised early risk assessment tool that will be used to support individual preventive measures for noncommunicable diseases, such as cardiovascular diseases, cancer, chronic respiratory diseases and diabetes, the leading causes of death in the world. This system will be accessible for individual citizens and patients on their smartphone via the WARIFA app. The WARIFA project represents expertise within AI technology, applied mathematics, statistics, medicine, sociology. We are looking for candidates with strong research expertise in applied probability and statistics, especially in mathematical foundations of machine learning, causal inference and bayesian belief networks, and advanced stochastic simulation techniques. There are no teaching duties. The positions will be formally advertised during the next months. In the meantime, those interested can send a mail to g.sebastiani(a)iac.cnr.it -- ________________________________________________________ Le informazioni contenute in questo messaggio di posta elettronica sono strettamente riservate e indirizzate esclusivamente al destinatario. Si prega di non leggere, fare copia, inoltrare a terzi o conservare tale messaggio se non si è il legittimo destinatario dello stesso. Qualora tale messaggio sia stato ricevuto per errore, si prega di restituirlo al mittente e di cancellarlo permanentemente dal proprio computer. The information contained in this e mail message is strictly confidential and intended for the use of the addressee only. If you are not the intended recipient, please do not read, copy, forward or store it on your computer. If you have received the message in error, please forward it back to the sender and delete it permanently from your computer system.

1 0

selezione pubblica per RTD-B, S.S.D. SECS-S/06 - Università degli Studi di Salerno
by Antonio DI CRESCENZO 14 Apr '21

14 Apr '21

Invio segnalazione di una procedura di selezione pubblica presso l'Università degli Studi di Salerno per il reclutamento di n. 1 ricercatore a tempo determinato, mediante stipula di contratti di lavoro subordinato di durata triennale, con regime di impegno a tempo pieno, ai sensi dell’art. 24, comma 3, lettera b) Legge 30 dicembre 2010 n. 240, presso il DIPARTIMENTO DI SCIENZE ECONOMICHE E STATISTICHE Codice concorso BRIC/PS/138 Settore concorsuale: 13/D4 - Metodi matematici dell'economia e delle scienze attuariali e finanziarie Profilo richiesto: SECS-S/06 - Metodi matematici dell'economia e delle scienze attuariali e finanziarie per il bando di concorso: https://web.unisa.it/amministrazione-trasparente/albo?file=files/003439673-…

1 0

Fwd: [owps] One World Probability Seminar Thursday April 15, 2021
by Faggionato, Alessandra 14 Apr '21

14 Apr '21

Buongiorno vi inoltro l'annuncio del OWPS di domani (i moderatori sono cambiati). Saluti Alessandra ---------- Forwarded message --------- Da: Nina Gantert <nina.gantert(a)tum.de> Date: mer 14 apr 2021 alle ore 15:48 Subject: [owps] One World Probability Seminar Thursday April 15, 2021 To: <owps(a)lists.bath.ac.uk> Dear All, Tomorrow's speakers in the One World Probability Seminar are Peter Mörters and Markus Heydenreich. (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: Peter Mörters Percolation phase transition in random connection models I: Subcritical phase in weight-dependent models We investigate spatial random graphs defined on the points of a Poisson process in d-dimensional space, which combine scale-free degree distributions and long-range effects. Every Poisson point is assigned an independent weight. Given the weight and position of the points, we form an edge between any pair of points independently with a probability depending on the two weights of the points and their distance. Preference is given to short edges and connections to vertices with large weights. We characterize the parameter regime where there is a nontrivial percolation phase transition and show that it depends not only on the power-law exponent of the degree distribution but also on a geometric model parameter. Based on joint work with Peter Gracar and Lukas Luechtrath. (15:00-16:00 UTC) Speaker: Markus Heydenreich Percolation phase transition in random connection models II: Critical behaviour for weight-independent models We study the random connection model (without weights) in a regime where a percolation phase transition occurs: for low edge density there are finite connected components only, while for large density there is an infinite component a.s. Our interest is on the transition between the low- and high-density regime. We prove an infrared bound for the critical connection function if the dimension is sufficiently large or if the pair connectivity has sufficiently slow decay; this allows a detailed description of this transition. To this end, we devise the lace expansion for Poisson processes. Based on joint work with Remco van der Hofstad, Günter Last, and Kilian Matzke. The zoom link will appear the day before on the OWPS website: https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.owpro… It can also be directly accessed through the link below: https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftum-conf.… Meeting-ID: 656 4176 8006 Kenncode: 161076 Best wishes, Julien and Nina -- ************************************************* 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 *************************************************

1 0

LTI@Unito/CCA webinar in QuantitativeFinance: “What matters in a characteristic?”, Hugues Langlois (HEC Paris) | April 20, 2021 @12:00
by Luca Regis 14 Apr '21

14 Apr '21

Dear Colleagues, I am happy to share with you the following invitation to the Quantative Finance webinar organized by LTI@UniTO and Collegio Carlo Alberto, “What matters in a characteristic?” by Hugues Langlois (HEC Paris), which will take place on Zoom on April 20, at 12.00. Below you find the Zoom link and an abstract of the presentation. Best regards, Luca Regis <#> <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/KjYRmqlKjrwhqhAdI2gLilGDSZjf_N3e7h…> <#> LTI@Unito and Fondazione Collegio Carlo Alberto are pleased to invite you to the next webinar <#> *April 20, 2021 | 12:00 - 13:15* *“What matters in a characteristic?”* * Hugues Langlois (HEC Paris)* <#> *Abstract*. We decompose firm characteristics into country, industry, and adjusted components and investigate their respective role in explaining expected returns and comovements in individual international stock returns. Models with adjusted components describe expected returns and comovements of individual stock returns better than models with unadjusted characteristics. While exposures to systematic risk factors are primarily explained by country components, alphas are predominantly driven by adjusted components. In contrast to the U.S. stock market, alphas in emerging and other developed markets are larger and significant. These rich empirical patterns inform models of stocks’ expected returns and comovements. *Zoom link* https://us02web.zoom.us/j/88521626111?pwd=cEdjUmdINERxZ3VzKzZuaXN5ZjEyZz09 <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/K-LOg1rFfgAp1Vis_nPzZABCDin-nMwdWK…> Meeting ID: 885 2162 6111 Passcode: 044353 <#> <#> <#> <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/G3qixTm9-N1P6dg7PFv3AK8C7TVOCc-7Yp…> <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/jtHbMvSIZkL41agMTsAl7rz6CCttgjbC7h…> <#> FONDAZIONE COLLEGIO CARLO ALBERTO Piazza Arbarello 8 - 10122 Torino, Italy phone: +390116705000 segreteria(a)carloalberto.org - www.carloalberto.org Facebook <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/zsLCc65Y9FomNLxNOcBSZGMOP7owve5tNm…> Twitter <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/5YX2pmxa-oc0WA3-iUV5-ciorC7wUYUyd2…> LinkedIn <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/WiJwT1Nk93TEFOV9ZwOihDt72sZCKlKyql…> Instagram <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/NaZEbS89ljbfvlcZWai2J42HH6phhDKVe8…> Youtube <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/ooK-g3SzwKowF2BfH3OuFQOAb1i_2ZONOT…> <#> *INFORMATION UNDER THE NEW GENERAL DATA PROTECTION REGULATION (GDPR)* Your personal information has been gathered for the exclusive purpose of informing you about the Collegio's initiatives, considering our and your legitimate interest or your consent. If you wish to have your personal data modified please contact Fondazione Collegio Carlo Alberto, piazza Arbarello 8, 1022 Torino, Italy - phone: +390116705000 - privacy(a)carloalberto.org *Unsubscribe* <https://4z5y5.r.a.d.sendibm1.com/mk/un/h2xCOW1uQ5i049PnKeo8VzMEWlTHSIzGmVY1…> <#> © 2021 Fondazione Collegio Carlo Alberto

1 0

notizia di Workshop
by Antonio DI CRESCENZO 14 Apr '21

14 Apr '21

Gent.mi, inoltro la notizia di un Workshop indirizzato verso "Probabilistic Methods for Time Series Data Management". Cordiali saluti, Antonio Di Crescenzo ----- I would like to point out the Workshop "ProTime2021" at the conference 'Data Base and Expert System Applications' (DEXA2021) - the scope is Probabilistic Methods for Time Series Data Management: http://www.dexa.org/protime2021 <https://www.researchgate.net/deref/http%3A%2F%2Fwww.dexa.org%2Fprotime2021> It happens for the first time, and we are curious about the amount of interest - also, the deadline is already the 23ed of April. However, this can be talked about. Please, if you know about interested people especially from the probability community, it would be of great value to the Workshop to have such contributions. It is a particularly good opportunity to publish probabilistic methods in the machine learning context. Thanks for spreading the news - it would be great to have participants from your community! With the best regards, Florian Sobieczky

1 0

Reminder: online seminar - Angelo Lucia (Caltech)
by Carbone Raffaella 13 Apr '21

13 Apr '21

Dear colleagues, it is our pleasure to invite you to the following seminar Speaker: *Angelo Lucia *(Caltech - Division of Physics, Mathematics and Astronomy) Title: *Mixing time of quantum Gibbs samplers* Time: Wednesday, *April 14*, 5PM (Italian time) The abstract follows below in this message. Zoom Link for the seminar <https://us02web.zoom.us/j/86771523774?pwd=SitEVEhPSGRlaEkxTHZmQk9rTmlLZz09> The seminar is a satellite activity of the PhD course "Introduction to coercive inequalities with applications in analysis and probability theory" (professor Boguslaw Zegarlinski - Imperial College, London) Best regards, Raffaella Carbone Abstract. Gibbs samplers are Markovian semigroups whose evolution converges towards the termal equilibrium of a given Hamiltonian (the Gibbs state). The time that the evolution takes, in the worst case, to converge close to the thermal state is known as the mixing time. Knowing the mixing time of a process is useful for many applications, and it can be estimated with various functional inequalities. In the case of classical spin systems on a lattice, it was shown that it is possible to determine the mixing properties of the semigroup from some "static" clustering condition of the thermal state. This suggests the question of whether the same is true for quantum spin systems. In this talk, I will focus on the specific case of Gibbs states of commuting Hamiltonians, and present some recent result in this direction. I will introduce the notion of quantum conditional relative entropy and show how it can be used to prove quasi-factorization (or approximate tensorization) properties of the quantum relative entropy. I will then show how these can be used to bound log-Sobolev constants for product semigroups with heath-bath generators, and under stronger assumptions in more general situations. -- Raffaella Carbone, PhD Probabilità e Statistica Matematica Dipartimento di Matematica dell'Università degli Studi di Pavia

1 0

In ricordo di Luigi M. Ricciardi
by Luigia Caputo 13 Apr '21

13 Apr '21

Cari colleghi, venerdì 16 Aprile, dalle ore 16:00 alle ore 16:30, in occasione dell'adunanza dell'Accademia di Scienze Fisiche e Matematiche, il Prof. Antonio Di Crescenzo, dell'Università degli Studi di Salerno, terrà una conversazione in ricordo di Luigi M. Ricciardi, a dieci anni dalla sua scomparsa. La conversazione avrà luogo in modalità telematica sulla piattaforma Microsoft Teams. Gli interessati sono calorosamente invitati a partecipare, accedendo al seguente link: https://teams.microsoft.com/dl/launcher/launcher.html?url=%2F_%23%2Fl%2Fmee… Cordiali saluti, Luigia Caputo -- Luigia Caputo Dipartimento di Matematica e Applicazioni Scuola Politecnica e delle Scienze di Base Universita' di Napoli FEDERICO II Via Cintia, Monte S.Angelo, 80126, NAPOLI, ITALY Tel. 081-675671 https://www.docenti.unina.it/luigia.caputo

1 0

PhD call
by Irene Crimaldi 12 Apr '21

12 Apr '21

Dear all, I am writing you because my university, IMT School for Advanced Studies Lucca (*www.imtlucca.it <https://www.imtlucca.it/en>*) is currently recruiting PhD students for the 2021/22 Programs. It is truly an excellent opportunity highly motivated candidates: the Programs are fully-financed (no tuition fees), all students receive up to four years of scholarships (15.300€/year) plus free room and board on-campus. I have attached some additional information and a flyer that contains the main details of the call. The call for applications ends on June 30th 2021 - 12.00 pm CEST – the application is entirely online (*https://www.imtlucca.it/en/phd/information-for-students <https://www.imtlucca.it/en/phd/information-for-students>*). I would be so grateful if you could pass this one to whom you think might be interested. All the best, Irene

1 0

8 PhD scholarships in Statistical Sciences – University of Padova, Italy – Deadline May 12, 2021 - 13:00 (CEST)
by Susi Ceron 09 Apr '21

09 Apr '21

Eight PhD scholarships (6 funded by the University of Padova and 2 funded by the Fondazione Cassa di Risparmio di Padova e Rovigo of which 1 is a fully funded grant reserved to foreign, non-italian, graduate students) are available at University of Padova for candidates interested in the area of *Statistical Sciences* (*start of activities: October 1st, 2021*). *Eligibility* The scholarship competition is open to applicants of any age or citizenship, holding a 2nd cycle degree or a single cycle degree from an Italian university or an equivalent qualification from other countries of at least four years’ duration (applicants can get their qualification no later than 30th September 2021). Admission is decided on the basis of qualifications only and does not require an entry examination. *Grant awarded* The annual grant will be of euros *15,343.28* (gross amount). The grant will be awarded for three years and it will be subject to satisfactory progresses evaluated on a yearly basis. *How to apply* The call is published (*deadline May 12, 2021 - 1 pm CEST*) at the page http://www.unipd.it/ricerca/dottorati-di-ricerca/bandi-e-graduatorie English version at the page http://www.unipd.it/en/node/1053 Please, note that the curriculum has to be written by filling the template CV_XXXVII available from the Course web page http://www.stat.unipd.it/ricerca/ammissione and uploading the filled template in the online procedure. *Applications are only accepted online using the link indicated in the call.* For more information about the Statistical Sciences PhD program see https://www.stat.unipd.it/ricerca/dottorato-di-ricerca For more information about admission see http://www.stat.unipd.it/ricerca/ammissione or contact phd(a)stat.unipd.it Kindest regards, PhD Secretariat on behalf of prof. Nicola Sartori Coordinator of the PhD Course in Statistics University of Padova - Italy *We apologize for cross posting *

1 0

Online Seminar by Cagin Ararat, Bilkent University (Wednesday, April 21, 15:30)
by Elisa Mastrogiacomo 09 Apr '21

09 Apr '21

*** Apologize for cross-posting *** On April Thursday 21 at 15:30, Cagin Ararat (Bilkent University) will give a virtual seminar “in Insubria & Bicocca”, to which you are all invited. Title and abstract below. Title: Set-valued martingales and backward stochastic differential equations Abstract: Motivated by the connection between univariate dynamic risk measures and backward stochastic differential equations, we start building a theory for set-valued backward stochastic differential equations (SV-BSDE). As a first step for this purpose, we formulate a simple SV-BSDE with a compact-valued driver function and study the well-posedness of this SV-BSDE. A key tool in establishing well-posedness is the availability of a stochastic integral representation for set-valued martingales. We prove a new martingale representation theorem which, in contrast to the available literature, allows the initial value of the martingale to be nontrivial. This is a joint work with Jin Ma (USC) and Wenqian Wu (USC). The seminar will be on Microsoft Teams. You can find the information to join below. Topic: Cagin Ararat - Set-valued martingales and backward stochastic differential equations Time: Apr 21, 2021 03:30 PM Rome Where: Microsoft Teams Link: https://teams.microsoft.com/l/meetup-join/19%3ameeting_Yzc1OGY5YjAtNjNhZC00… Please forward to anyone interested. Kind regards, Emanuela Rosazza Gianin and Elisa Mastrogiacomo

1 0

Associate Professor position in SPDEs in Oslo
by Luigi Amedeo Bianchi 09 Apr '21

09 Apr '21

Inoltro il seguente annuncio di una posizione da professore associato a Oslo. The Department of Mathematics at the University of Oslo announced an associate professorship position in the area of stochastic PDEs. The deadline for applications is April, 21. Additional information available at: https://www.jobbnorge.no/en/available-jobs/job/202219/associate-professor-i… <https://www.jobbnorge.no/en/available-jobs/job/202219/associate-professor-i…>

1 0

Seminar announcement
by Marco Scarsini 09 Apr '21

09 Apr '21

Thursday, 15 April, 17:00 CET *Vahideh Manshadi**, *Yale University Fair Dynamic Rationing <http://mailsender.luiss.it/lists/lt.php?id=cRpQBwUASAUEBw1OVgFdBQs> Discussants: Florin Ciocan and Sean Sinclair The paper can be found here <https://arxiv.org/abs/2102.01240>. This is the link to the Virtual Room <http://mailsender.luiss.it/lists/lt.php?id=cRpQAAYBSAUEBw1OVgFdBQs>. If you want to receive the password to access the virtual room, please fill out this form <https://docs.google.com/forms/d/e/1FAIpQLSeDxM-M5ogG43elgjC-lNCp0BDhISiZHG0…> (If you filled out the form in the past, this is not necessary). The schedule of the upcoming seminars can be found here <https://economiaefinanza.luiss.it/en/seminari/seminari-2021>. ******************************************************* Marco Scarsini Dipartimento di Economia e Finanza Luiss Viale Romania 32 00197 Roma, ITALY URL: http://docenti.luiss.it/scarsini/

1 0

ABC in "Svalbard" (in fact, online)
by Massimiliano ... 09 Apr '21

09 Apr '21

Buon giorno, causa pandemia, la 2 giorni "ABC in Svalbard" su ABC, simulation-based inference e likelihood-free inference sarà interamente online, gratis e aperta a tutti, come riportato sotto nell'invito di Chistian Robert. Cordiali saluti, Massimiliano ------ Dr. Massimiliano Tamborrino Assistant Professor Department of Statistics University of Warwick https://warwick.ac.uk/tamborrino ********************************************************************************** Dear All, Since we sadly had to cancel the physical workshop in Longyearbyen, Svalbard next week, we have organised mirror versions in different places. Brisbane, Grenoble and Melbourne. The event is open to everyone and free, with the programme available on https://sites.google.com/view/abcinsvalbard-grenoble-mirror/<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsites.go…> Here is the Zoom link for the Grenoble side [no password needed] https://univ-grenoble-alpes-fr.zoom.us/j/99840576807?pwd=ZHNkaU1jU0ZHRVZma3…<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Funiv-gre…> while for Monash/Brisbane 1) Here are the schedule, personnel, titles and abstracts: https://docs.google.com/spreadsheets/d/1VP9qzvs85b7QnhfYyXBKJUbKAYm07SYMF5p…<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.goo…> 2) Here is the zoom link for the 2.00-5.00pm time slots on both days: Please click this URL to start or join. https://monash.zoom.us/j/89085250244?pwd=ZUxFTzVWTThuTldCMDZuUW1BQnA5UT09<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.goog…> Or, go to https://monash.zoom.us/join<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.goog…> and enter meeting ID: 890 8525 0244 and passcode: 746409 Feel free to forward the links through your mailing lists and we hope to see you on-line next week! All the best, Christian Robert (on behalf of the organisers)

1 0

BAYSM 2021: registration and abstract submission are now open!
by Federico Camerlenghi 08 Apr '21

08 Apr '21

Dear all, the Bayesian Young Statisticians Meeting (BAYSM2021) will take place online on September 1-3, 2021. BAYSM is the official conference of j-ISBA, the junior section of the International Society for Bayesian Analysis. It is intended for Ph.D. Students, M.S. Students, Post-Docs, Young and Junior researchers working in the field of Bayesian statistics, providing an opportunity to connect with the Bayesian community at large. Senior discussants will be present at each session, providing participants with hints, suggestions and comments to their work. Distinguished professors of the Bayesian community will also participate as keynote speakers, making an altogether exciting program. Registration is now open https://events.stat.uconn.edu/BAYSM2021/ <https://events.stat.uconn.edu/BAYSM2021/>and it will be free, but mandatory. The event is also supported by ISBA and Yunnan University (Kunming, China). Young researchers interested in giving a talk or presenting a poster are invited to *submit an extended abstract by May 10, 2021* during the registration process. Notification of acceptance will be given by the end of June. *The extended abstract should be written according to the template and instructions provided on the registration page*, the template is downloadable from the button "Resources". For organizational reasons, we kindly ask all the interested researchers to register even if they just want to attend the meeting, the deadline for registration is again May 10, 2021. *Confirmed Keynote speakers:* Maria De Iorio Francesca Dominici David Dunson Xuanlong Nguyen Amy Shi Jessica Utts *Confirmed discussants:* Cathy WS Chen Pierre Jacob Rosangela Loschi Li Ma David Rossel While the meeting is organized for and by junior Bayesians, attendance is open to anyone who may be interested. For more information, please visit the conference website: https://events.stat.uconn.edu/BAYSM2021/ <https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fevents.st…> Or write an email to baysm.isba(a)gmail.com On behalf of the BAYSM2021 organizing committee -- Federico Camerlenghi Assistant Professor RTDb Department of Economics, Management and Statistics University of Milano Bicocca, Milano, Italy. web-page: https://www.unimib.it/federico-camerlenghi

1 0

Seminario: Step-by-step community detection in volume-regular graphs, 9 Aprile ore 15
by Pietro Caputo 08 Apr '21

08 Apr '21

Seminario di Emilio Cruciani a Roma Tre: Emilio Cruciani (Universitaet Salzburg) Titolo: Step-by-step community detection in volume-regular graphs Venerdi' 09 Aprile 2021 ORE 15:00 Dipartimento di Matematica e Fisica Universita' degli Studi Roma Tre Abstract Spectral techniques have proved amongst the most effective approaches to graph clustering. However, in general they require explicit computation of the main eigenvectors of a suitable matrix (usually the Laplacian matrix of the graph). Recent work (e.g., Becchetti et al., SODA 2017) suggests that observing the temporal evolution of the power method applied to an initial random vector may, at least in some cases, provide enough information on the space spanned by the first two eigenvectors, so as to allow recovery of a hidden partition without explicit eigenvector computations. While the results of Becchetti et al. apply to perfectly balanced partitions and/or graphs that exhibit very strong forms of regularity, we extend their approach to graphs containing a hidden k-partition and characterized by a milder form of volume-regularity. We show that the class of k-volume regular graphs is the largest class of undirected (possibly weighted) graphs whose transition matrix admits k “stepwise” eigenvectors (i.e., vectors that have constant entries over the components corresponding to the same set of the hidden partition). To obtain this result, we highlight a connection between volume regularity and lumpability of Markov chains. Moreover, we prove that if the stepwise eigenvectors are those associated to the first k largest eigenvalues of the transition matrix of a random walk on the graph and the gap between the k-th and the (k+1)-th eigenvalues is sufficiently large, the Averaging dynamics of Becchetti et al. recovers the underlying community structure of the graph in logarithmic time, with high probability. Based on a joint work with Luca Becchetti, Francesco Pasquale, and Sara Rizzo. Link to the paper: https://arxiv.org/abs/1907.07149 Per partecipare al Seminario cliccare sul seguente Link: https://teams.microsoft.com/dl/launcher/launcher.html?url=%2F_%23%2Fl%2Fmee…

1 0

Tenure-Track Assistant Professor (RTD-B) in Statistics , DAIS - Ca’ Foscari University of Venice, Italy
by Carlo Gaetan 07 Apr '21

07 Apr '21

1 0

Tenure-track position (RTD-B) in Mathematics for Economics at Ca' Foscari University of Venice
by Antonella Basso 07 Apr '21

07 Apr '21

Call for applications for a tenure-track position as associate professor at the Department of Economics - Ca' Foscari University, Venice, Italy The Department of Economics is actively searching for brilliant and promising scholars to fill one tenure-track position (ricercatore RTD-B). The research activity will concern themes related to Mathematics for Economics, Finance, Social and Actuarial Sciences (including models and mathematical methods for decision theory, risk and uncertainty management, agent models and computational methods). Teaching commitment: excellent teaching skills are required to deliver courses, within the terms provided for by the University regulations, at the three-year degree, master's degree and PhD level (in Italian and English). In particular: Mathematics - modules 1 and 2; Financial mathematics; Computational tools for economics. The researcher may also be assigned managerial and organizational tasks to be carried out in the Department. Detailed additional information is at https://www.unive.it/data/38002/?id=2021-UNVE000-0022725 Informal queries may be directed to prof.ssa Antonella Basso, basso(a)unive.it and prof. Paolo Pellizzari, paolop(a)unive.it. Apply within 6 May 2005. -- Antonella Basso Dipartimento di Economia Università Ca' Foscari Venezia Fondamenta S. Giobbe - Cannaregio 873 30121 Venezia - Italy Tel. +39-041-2346914 E-mail address: basso(a)unive.it Web page: http://www.unive.it/data/persone/5591751

1 0

Padova Online Seminar by Chiara Franceschini (IST Lisbona) [Friday, Apr. 16 at 12.00]
by alessandra bianchi 07 Apr '21

07 Apr '21

Dear Colleagues, We would like to invite you to the following Probability seminar that will take place on April 16 at 12.00 by the zoom platform. ________________________________________________________ Speaker: Chiara Franceschini (IST Lisbona) Title: The symmetric inclusion process: some properties and scaling limit 16 APRIL (Friday) - 12:00 zoom link: TBA available on the webpage https://www.math.unipd.it/~bianchi/seminari/ ) Abstract: The symmetric inclusion process (SIP) is an interacting particle system discovered as the dual process of a Markov diffusion that conserves the total energy, it can be tough as the inclusion counterpart of the well-known exclusion process. In this talk, I will present the model with an open boundary, i.e. with two reservoirs which create a flux of particles in the bulk putting the model in a non-equilibrium setting. We will see that via the duality property, we can characterize some correlations of its stationary measure in non-equilibrium and we will also see what are, in this open setting, the so-called hydrodynamic and hydrostatic limit. -- 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/

1 0

Workshop announcement: Junior female researchers in probability, 4-6 October 2021
by Luisa Andreis 07 Apr '21

07 Apr '21

Dear colleagues, we would like to draw your attention to the third conference for "Junior female researchers in probability”, 4-6 October 2021 (postponed from last year due to the pandemic). The aim of this workshop is to promote young female researchers by giving them an opportunity to present their own work, and hear distinguished mathematicians who can inspire them to pursue a fulfilling career in probability. Keynote speakers: Nina Gantert (TU München) Eva Löcherbach (Paris) Invited speakers: Sigrid Källblad (Stockholm) Annika Lang (Göteborg) Elena Pulvirenti (Delft) Maite Wilke Berenguer (Berlin) The workshop will take place online and, if possible, as a hybrid event in Berlin. We warmly invite those who identify as female to submit abstracts for contributed talks, and apply for financial support for travelling to Berlin in case we can have a hybrid event. However, please be aware that being unable to travel should not restrain from submitting an abstract. There are special travel grants for female master students interested in gaining some insight into research and get in touch with researchers. Of course everybody is very welcome to participate, but presentations and financial support are reserved for female participants. Deadline for submission of abstracts and funding requests: June 30, 2021. Please pass this information on to interested master students, PhD students and postdocs as well as your colleagues! More details can be found on our website: https://www.wias-berlin.de/workshops/JFRP21/ <https://www.wias-berlin.de/workshops/JFRP21/> Best regards, Luisa Andreis, Peter Bank, Dörte Kreher, Laura Körber, Noemi Kurt, Alexandra Quitmann and Weile Weng

1 0

Seminar announcement Thursday 22 - Optimal constrained and unconstrained subgraph structures (prof. Clara Stegehuis)
by Gianmarco Bet 07 Apr '21

07 Apr '21

Dear colleagues, On April Thursday 22 at 14:30, prof. Clara Stegehuis (Twente University) will give a virtual seminar “in Florence”, to which you are all invited. You can find title and abstract below. Title: Optimal constrained and unconstrained subgraph structures Abstract: Subgraphs contain important information about network structures and their functions. We investigate the presence of subgraphs in a random graph model with infinite-variance degrees. We introduce an optimization problem which identifies the dominant structure of any given subgraph. The unique optimizer describes the degrees of the vertices that together span the most likely subgraph and allows us to count and characterize the asymptotic number of subgraphs in a simple manner. We then show that this optimization problem easily extends to investigating other random network structures, such as clustering, which expresses the probability that two neighbors of a vertex are connected. The optimization problem is able to find the behavior of network subgraphs in a wide class of random graph models. The seminar will be on Zoom. You can find the information to join below. Topic: Clara Stegehuis - Optimal constrained and unconstrained subgraph structures Time: Apr 22, 2021 02:30 PM Rome Join Zoom Meeting https://us02web.zoom.us/j/85651690146?pwd=ZnRCbGR6OUlxM2J4RldJd2R1aVE3Zz09 Meeting ID: 856 5169 0146 Passcode: 770134 If you know of someone who might be interested and is not subscribed to the random mailing list, please do not hesitate to forward this announcement to them. Kind regards, Gianmarco ---------------------------------------------------------------------- Gianmarco Bet (he/him) Junior researcher https://gianmarco.bet Phone: (+39) 055 2751491 Department of Mathematics and Informatics "U. Dini" University of Florence Viale Morgagni, 65 50134 Firenze, Italy Office 64 ----------------------------------------------------------------------

1 0

online seminar - Angelo Lucia - Mixing time of quantum Gibbs samplers
by Carbone Raffaella 07 Apr '21

07 Apr '21

Dear colleagues, it is our pleasure to invite you to the following seminar Speaker: *Angelo Lucia* Title: *Mixing time of quantum Gibbs samplers* Time: Wednesday, *April 14*, 5PM (Italian time) The abstract follows below in this message. Zoom Link for the seminar <https://us02web.zoom.us/j/86771523774?pwd=SitEVEhPSGRlaEkxTHZmQk9rTmlLZz09> The seminar is a satellite activity of the PhD course "Introduction to coercive inequalities with applications in analysis and probability theory" (professor Boguslaw Zegarlinski - Imperial College, London) Best regards, Raffaella Carbone Abstract. Gibbs samplers are Markovian semigroups whose evolution converges towards the termal equilibrium of a given Hamiltonian (the Gibbs state). The time that the evolution takes, in the worst case, to converge close to the thermal state is known as the mixing time. Knowing the mixing time of a process is useful for many applications, and it can be estimated with various functional inequalities. In the case of classical spin systems on a lattice, it was shown that it is possible to determine the mixing properties of the semigroup from some "static" clustering condition of the thermal state. This suggests the question of whether the same is true for quantum spin systems. In this talk, I will focus on the specific case of Gibbs states of commuting Hamiltonians, and present some recent result in this direction. I will introduce the notion of quantum conditional relative entropy and show how it can be used to prove quasi-factorization (or approximate tensorization) properties of the quantum relative entropy. I will then show how these can be used to bound log-Sobolev constants for product semigroups with heath-bath generators, and under stronger assumptions in more general situations. -- Raffaella Carbone, PhD Probabilità e Statistica Matematica Dipartimento di Matematica dell'Università degli Studi di Pavia

1 0

Postdoc position at Université Laval
by Marzia Angela Cremona 06 Apr '21

06 Apr '21

12-month postdoc fellowship from September 2021 (indicatively) at Université Laval (Quebec City), under the supervision of Marzia A. Cremona (Operation and Decision Systems Department) and Federico Severino (Finance Department). Research area: Functional motif discovery for financial time series. Requirements: * Background in statistics, econometrics, or data science. * PhD in related areas obtained less than 5 years ago. * Proficiency in R and programming skills. Primary goal: Generalize and adapt existing statistical learning methods for motif discovery in functional data, to detect and predict bubbles and recurrent patterns in financial time series. An important part of the work is computational. No teaching activity required. Yearly salary: 51 737 CAD (maximum possible salary according to the postdoc union collective agreement). Additional funds available for conference attendance. A small amount of teaching assistantship can provide extra salary. The candidate commits to move to Quebec City. In case public health conditions do not allow the moving, remote work can be considered. For information or to apply, contact marzia.cremona(a)fsa.ulaval.ca<mailto:marzia.cremona@fsa.ulaval.ca> or federico.severino(a)fsa.ulaval.ca<mailto:federico.severino@fsa.ulaval.ca> Marzia A Cremona Department of Operations and Decision Systems Université Laval T 418 656-2131, poste 412525 https://marziacremona.com<https://marziacremona.com/> Pavillon Palasis-Prince, local 2449 2325, rue de la Terrasse Québec (Québec) G1V 0A6

1 0

Pisa Online Seminars - Laure Dumaz and Martin Vogel (Tuesday, April 13 at 16:00 and 17:00)
by Giacomo Filippo Di Gesu 06 Apr '21

06 Apr '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 two talks will be accessible under the link Click here to join the meeting<https://teams.microsoft.com/l/meetup-join/19%3Aaf3d635091e049579e555a84219a…> Best regards, Giacomo Tuesday, April 13, 16:00 Speaker: Laure Dumaz (École Normale supérieure) Title: Localization of the continuous Anderson hamiltonian in 1-d and its transition towards delocalization. Abstract: We consider the continuous Schrödinger operator - d^2/d^x^2 + B’(x) on the interval [0,L] where the potential B’ is a white noise. We study the entire spectrum of this operator in the large L limit. We prove the joint convergence of the eigenvalues and of the eigenvectors and describe the limiting shape of the eigenvectors for all energies. When the energy is much smaller than L, we find that we are in the localized phase and the eigenvalues are distributed as a Poisson point process. The transition towards delocalization holds for large eigenvalues of order L. In this regime, we show the convergence at the level of operators. The limiting operator in the delocalized phase is acting on R^2-valued functions and is of the form ``J \partial_t + 2*2 noise matrix'' (where J is the matrix ((0, -1)(1, 0))), a form appearing as a conjecture by Edelman Sutton (2006) for limiting random matrices. Joint works with Cyril Labbé. Tuesday, April 13, 17:00 Speaker: Martin Vogel (Université de Strasbourg) Title: Eigenvalue asymptotics and eigenvector localization for non-Hermitian noisy Toeplitz matrices Abstract: A most notable characteristic of non-Hermitian matrices is that their spectra can be intrinsically sensitive to tiny perturbation. Although this spectral instability causes the numerical analysis of their spectra to be extremely unreliable, it has recently been shown to be also the source of new mathematical phenomena. I will present recent results about the eigenvalues asymptotics and eigenvector localization for deterministic non-Hermitian Toeplitz matrices with small additive random perturbations. These results are related to recent developments in the theory of partial differential equations. The talk is based on joint work with J. Sjöstrand, and with A. Basak and O. Zeitouni. ************************ 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/

1 0

Avviso di Seminario - PRISMA
by Domenico Marinucci 06 Apr '21

06 Apr '21

Cari Colleghi lunedì prossimo 12 Aprile dalle 16 alle 18 avrà luogo il prossimo incontro per il ciclo di seminari Prisma. Gli speaker saranno Marco Fuhrman e Andrea Cosso, qui sotto titoli, abstract ed il link al collegamento Teams. ---------------------------------------------------------------- Speaker: Marco Fuhrman (Università di Milano) Title: A new tool in stochastic optimal control: the randomization method. Abstract: In the first part of this talk I will present a survery on the relationships among classical stochastic optimal control problems, non-linear partial differential equations (the Hamilton-Jacobi-Bellman equations) and backward stochastic differential equations (BSDEs). In the second part, more specifically, I will introduce the so-called randomization method, which allows to associate an appropriate BSDE to a large class of optimal control problems. Among the possible generalizations, I will concentrate on optimal control of path-dependent equations, i.e. equations with general with memory effects. Speaker: Andrea Cosso (Università di Bologna) Title: Randomization method and path-dependent Hamilton-Jacobi-Bellman equation Abstract: In the present talk I will study a stochastic optimal control problem with path-dependent coefficients. I will exploit the so-called randomization method to derive a dynamic programming principle for the value function. This allows to prove that the value function is a viscosity solution to a path-dependent Hamilton-Jacobi-Bellman equation, involving the horizontal and vertical derivatives of functional Ito calculus. Finally, I will discuss the validity of the comparison principle for such a partial differential equation. Collegamento Teams: https://teams.microsoft.com/l/meetup-join/19%3a667d2414be564c5d8fba30acffeb… --------------------------------------------------------------------- Grazie per l'attenzione, Domenico Marinucci e Claudia Ceci

1 0