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Seminario PRISMA mar 3 dic 2024
by Francesco Caravenna 19 Nov '24

19 Nov '24

Seminari on-line del gruppo UMI - PRISMA (http://www.umi-prisma.polito.it/) I seminari PRISMA hanno un formato di "colloquium" per creare un'occasione di scambio e discussione con tutta la comunità dei probabilisti e statistici italiani. Ogni giornata comprende due relatori che tengono due seminari di 30 minuti strettamente connessi, per presentare alla comunità una prospettiva sul proprio ambito di ricerca. Da quest'anno le registrazioni dei seminari vengono pubblicate sul canale YouTube dell'UMI: https://youtube.com/playlist?list=PLmySpc-jrtAMq84VH71evyqPc1hl6eEQb Il prossimo appuntamento è per martedì 3 dicembre 2024. I relatori saranno Sonia Mazzucchi e Stefano Bonaccorsi (Università di Trento) che ci parleranno di Passeggiate casuali sul piano complesso ed equazioni del calore di ordine superiore al secondo con il seguente orario: 16:00 Primo seminario 16:30 Pausa e discussione 16:45 Secondo seminario 17:15 Conclusione e discussione Trovate di seguito il riassunto. I seminari verranno trasmessi via Zoom al seguente link: https://uniroma1.zoom.us/j/88679569146 Meeting ID: 886 7956 9146 Vi aspettiamo numerosi! Valentina Cammarota e Francesco Caravenna %%%%%%%%%%%%%%%%%%%%%%%%%%%% RELATORI: Sonia Mazzucchi (Università di Trento) e Stefano Bonaccorsi (Università di Trento) TITOLO: Passeggiate casuali sul piano complesso ed equazioni del calore di ordine superiore al secondo RIASSUNTO: La celebre formula di Feynman-Kac, che fornisce una rappresentazione della soluzione dell'equazione del calore in termini di un integrale rispetto alla misura di Wiener, non può essere generalizzata al caso in cui il laplaciano, o più in generale l'operatore ellittico del secondo ordine, è sostituito da un operatore di ordine superiore a 2. In altre parole per tale classe di equazioni differenziali di ordine elevato non è possibile costruire un processo stocastico che svolga lo stesso ruolo giocato dal moto Browniano per l'equazione del calore. Nella prima parte del seminario si illustreranno dapprima le ragioni di questo risultato no-go per poi descrivere un possibile metodo per aggirarlo tramite la costruzione di opportune successioni di passeggiate casuali nel piano complesso. Nella seconda parte del seminario si descriveranno ulteriori applicazioni e generalizzazioni di tale tecnica. In particolare si illustrerà la costruzione di un calcolo stocastico associato alla successione di passeggiate casuali e la dimostrazione di formule di Feynman-Kac per PDE di ordine elevato, anche nel caso di derivate di tipo frazionario. %%%%%%%%%%%%%%%%%%%%%%%%%%%%

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Reminder: Bertram Duering in Sapienza
by Enrico Scalas 18 Nov '24

18 Nov '24

Car* collegh*, mi permetto di ricordare il seguente annuncio inviato più di un mese fa. Il seminario si terrà domani. -- Il 19 novembre 2024, in aula 24 del Dipartimento di Scienze Statistiche, Sapienza, Università di Roma, alle ore 14, il Prof. Bertram Düring della University of Warwick, Mathematics Institute terrà un seminario dal titolo From interacting agents to emerging patterns in economics and sociology Riassunto: Real-world systems in economics and sociology often consist of a large number of interacting agents that may form patterns or develop a collective behaviour. Typical applications include wealth and income distribution in an economy and opinion formation in a society. Mathematical techniques originating from statistical mechanics can be successfully developed further to model such systems and obtain mesoscopic and macroscopic descriptions of the microscopic dynamics. Such approaches frequently lead to generalisations of the classical Boltzmann equation for gas dynamics and associated limit partial differential equations. In this talk I will discuss different kinetic models for wealth distribution and opinion formation, and present analytical and numerical results. Tutte le persone interessate sono invitate a partecipare. Chi fosse interessato a partecipare a distanza, per favore, mi scriva a: enrico.scalas(a)uniroma1.it -- Cordiali saluti, Enrico Scalas

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Call for applications: research grant/assegno di ricerca, Math Department, UniPD
by giambattista giacomin 18 Nov '24

18 Nov '24

Dear colleagues, I am pleased to announce that the Mathematics Department of the University of Padua just published the selection notice to award one Research Grant for the research project entitled “Mathematical approach to statistical mechanics models”. The grant will last for 18 months and shall entitle the Grant Holder to a gross remuneration of 32.427 Euro per year. The submission deadline is December 16th, 2024. All information can be found here https://www.math.unipd.it/news/bando-n-28-2024-per-n-1-assegno-di-ricerca-a… and you are encouraged to contact me (giacomin(a)math.unipd.it <mailto:giacomin@math.unipd.it>) if you have any question. I would also greatly appreciate if you could forward this announcement to potentially interested candidates. Best Regards Giambattista ------------------------------------------------------------ Giambattista Giacomin Department of Mathematics Tullio Levi-Civita Torre Archimede (6CD9) Via Trieste 63, 35121 Padova, Italy https://www.math.unipd.it/~giacomin/

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Seminario Davide Bignamimi - Politecnico di Milano - 27 Novembre 2024
by Luca Scarpa 18 Nov '24

18 Nov '24

Si segnala il seguente seminario a tutti gli interessati. Mercoledì 27 Novembre 2024, ore 11:00. Aula Seminari III Piano, Dipartimento di Matematica, Politecnico di Milano. Speaker: Davide Bignamini, Università degli Studi dell'Insubria. Title: Strong uniqueness for SPDEs and regularity of Kolmogorov equations. Abstract: Pathwise uniqueness plays a crucial role in the investigation of the existence of strong solutions to Stochastic Differential Equations (SDEs) since the seminal result by Yamada and Watanabe in 1971, where they proved that weak existence and pathwise uniqueness imply strong existence. A few years later, Zvonkin introduced the so-called Zvonkin transformation, which allows to remove a drift term by means of a suitable change of coordinates using the Ito formula, and then applies the result of Yamada and Watanabe to construct strong solutions to a class of SDEs with rough drift coefficient. In recent years, these techniques have been extended to Stochastic Partial Differential Equations (SPDEs) . One of the main tools for proving pathwise uniqueness in infinite dimensions is the so-called Itô-Tanaka trick, which involves replacing the "bad" drift term with the solution to a suitable Kolmogorov equation. In this talk, we will examine these topics for a class of parabolic and hyperbolic SPDEs. Link Zoom: <https://polimi-it.zoom.us/j/94505074623> Join our Cloud HD Video Meeting<https://polimi-it.zoom.us/j/94505074623> polimi-it.zoom.us<https://polimi-it.zoom.us/j/94505074623> [zoom.ico]<https://polimi-it.zoom.us/j/94505074623> Link Seminario Polimi: <https://www.mate.polimi.it/eventi/?id=2503> Eventi Dipartimento di Matematica - Politecnico di Milano<https://www.mate.polimi.it/eventi/?id=2503> mate.polimi.it<https://www.mate.polimi.it/eventi/?id=2503> [apple-touch-icon-152x152-precomposed.png]<https://www.mate.polimi.it/eventi/?id=2503> ----- Prof. Luca Scarpa, PhD Associate Professor in Probability Department of Mathematics Politecnico di Milano Via E. Bonardi 9 20133 Milano, Italy e.mail: luca.scarpa(a)polimi.it<mailto:luca.scarpa@polimi.it> url: https://sites.google.com/view/lucascarpa

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Call postdoc @Unisi
by Piero MAZZARISI 18 Nov '24

18 Nov '24

Dear colleagues, I want to advertise a call for a one-year (renewable) postdoc position at the University of Siena on: “Time-varying parameters models of climate change, financial stability, and systemic risk” The project is founded by PRIN 2022 PNRR n. P20229CJRS “Climate change, Uncentainty, and Financial Risk: Robust Approaches based on Time-Varying Parameters”. A synthetic description of the project topic can be found here: https://www.unisi.it/sites/default/files/albo_pretorio/bandi/concorsi_inter… Gross salary: 35000 Euro (yearly) Deadline for applications: December 3rd, 2024 The call as well as instructions for application, can be found here: https://www.unisi.it/albo_pretorio/bandi/concorsi_interni/conferimento-di-u… Do not hesitate to contact me for any info. Best regards, Piero Mazzarisi — Piero Mazzarisi Department of Economics and Statistics University of Siena Personal website: https://pieromazzarisi.wordpress.com <https://pieromazzarisi.wordpress.com/>

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MOX COLLOQUIUM 21.11.24 ore 14:00 Politecnico di Milano - Prof Klaus-Robert Müller - Technische Universität Berlin
by Laura Maria Sangalli 18 Nov '24

18 Nov '24

Cari Colleghi, vi ricordo il seguente seminario della serie dei MOX COLLOQUIA, presso il Dipartimento di Matematica del Politecnico di Milano Seguirà rinfresco. 21.11.24, Ore 14:00 - Aula Consiglio VII piano - Dipartimento di Matematica Speaker: Klaus-Robert Müller, Technische Universität Berlin Titolo: Machine Learning and AI for the Sciences: toward understanding Abstract: In recent years, machine learning (ML) and artificial intelligence (AI) methods have begun to play a more and more enabling role in the sciences and in industry. In particular, the advent of large and/or complex data corpora has given rise to new technological challenges and possibilities. In his talk, Müller will touch upon the topic of ML applications in the sciences, in particular in chemistry and physics. He will also discuss possibilities for extracting information from machine learning models to further our understanding by explaining nonlinear ML models. Finally, Müller will briefly discuss perspectives and limitations. Il seminario verrà erogato anche in modalità on-line attraverso la piattaforma Cassyni, si vedano i seguenti link: https://mox.polimi.it/mox-colloquia-seminars-list/mox-seminars/?id_evento=2… https://cassyni.com/events/HPfFtf7ELqgkkzqR7cbDru Per seguire il seminario è necessario iscriversi alla piattaforma Cassyni, seguendo le istruzioni indicate sotto. Tutti gli interessati sono cordialmente invitati. Un cordiale saluto, Laura --------------- Info generale: I MOX Colloquia si sono spostando sulla piattaforma Cassyni. Li trovate al link https://cassyni.com/s/mox-colloquia Tutti gli interessati possono iscriversi al canale (semplicemente cliccando il tasto blu "Subscribe" nella pagina principale). —— Laura Maria Sangalli MOX - Dipartimento di Matematica Politecnico di Milano Piazza Leonardo da Vinci 32 20133 Milano - Italy (+39) 02 2399 4554 laura.sangalli(a)polimi.it<mailto:laura.sangalli@polimi.it> https://sangalli.faculty.polimi.it

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Conference: Matrix-Analytic Methods in Stochastic Models, June 25-27, 2025
by Federico Poloni 18 Nov '24

18 Nov '24

Hello All, We are pleased to announce that the 12th edition of the Matrix-Analytic Methods in Stochastic Models (MAM) Conference will be held in the heart of Toronto, Canada, at the Fields Institute, from June 25th to June 27th, 2025. While the MAM 12 Conference will be held in person and all presentations will take place in person, live streaming will be available to registered attendees who are unable to attend the conference in person. You can register via the conference homepage: https://sites.google.com/ontariotechu.net/mam-12-conference/home We are excited to have four distinguished keynote speakers who will bring their valuable insights to the conference: • Dr. Amy Ward (University of Chicago) • Dr. Ivo Adan (Eindhoven University of Technology) • Dr. Mark Squillante (IBM Research) • Dr. Opher Baron (University of Toronto and CEO of SiMLQ) After the conference, speakers will have the option to submit their full papers for publication in a special issue of Performance Evaluation (PEVA). We look forward to welcoming you to Toronto for what promises to be an exceptional gathering of researchers from across engineering, mathematics, and the sciences. Warm regards, Organizing co-chairs: Dr. Amir Rastpour (Ontario Tech University) Dr. Yiqiang Zhao (Carleton University) Program co-chairs: Dr. Brian Fralix (Clemson University) Dr. Federico Poloni (University of Pisa) -- --Federico Poloni Dipartimento di Informatica, Università di Pisa https://www.di.unipi.it/~fpoloni/ tel:+39-050-2213143

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Fwd: Announcement: Workshop "Stochastic processes on random geometries” at TU Braunschweig
by Faggionato, Alessandra 18 Nov '24

18 Nov '24

Buongiorno, ricevo e con piacere inoltro. Saluti Alessandra ---------- Forwarded message --------- From: Andres, Sebastian <sebastian.andres(a)tu-braunschweig.de> Dear Colleagues, We kindly ask for your support in sharing the following announcement: The Institute for Mathematical Stochastics at the* Technical University Braunschweig* will host the Workshop *"Stochastic processes on random geometries”* scheduled from* February 17-21 2025.* The program will feature two mini lecture series delivered by: *Martin Barlow* (University of British Columbia) *Nina Gantert* (TU Munich) In addition, the event will include 14 invited lectures and one session dedicated to young researchers. The specific topics include random walks in random environment, static and dynamic percolation, interacting particle systems, statistical mechanics and their applications in physics, materials science and biology. Our aim is to provide a platform for the presentation of recent results, national and international scientific exchange and the education of younger scientists that are interested in the subject. For more information, including a list of invited speakers and a link for registration, see the workshop webpage https://www.tu-braunschweig.de/stochastik/aktuell/workshops The workshop is supported by the *SSP2265 "Random Geometric Systems"*. Best regards, On behalf of the Organising Committee, Sebastian Andres and Benedikt Jahnel -- ************************************************* Prof. Alessandra Faggionato https://www1.mat.uniroma1.it/people/faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 123, first floor *************************************************

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Seminar of Francesco Caravenna - Thursday 21th of Nov., 16.00-17.00
by SAU FEDERICO 14 Nov '24

14 Nov '24

Dear all, this is to announce the following seminar in Probability and Mathematical Physics, jointly organized with Marcello Porta and Tamara Grava from SISSA. Speaker: Francesco Caravenna (University of Milano-Bicocca) Title: The 2d Stochastic Heat Equation and related critical models Abstract: We present recent progress in understanding a class of "critical" models, including the Stochastic Heat Equation and Kardar-Parisi-Zhang Equation (KPZ) in two space dimensions, as well as a random walk model in statistical mechanics, known as the directed polymer in random environment. We discuss in particular the construction of a non-trivial solution for the ill-posed two-dimensional Stochastic Heat Equation, which has led to a novel object named the critical 2d Stochastic Heat Flow. Venue, date and time: SISSA, Room 134, on Thursday November 21 at 16:00. With best regards, Federico (for the organizers)

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Save the date: OWABI - Jeremias Knoblauch - Nov 28
by Massimiliano Tamborrino 14 Nov '24

14 Nov '24

Dear all, the next One World Approximate Bayesian Inference (OWABI) Seminar<https://warwick.ac.uk/fac/sci/statistics/news/upcoming-seminars/abcworldsem…> is scheduled on Thursday, November 28 at 11am. Our next OWABI speaker is Jeremias Knoblauch<https://jeremiasknoblauch.github.io/> (UCL), who will talk about "Post-Bayesian machine learning ", with the following Abstract: In this talk, I provide my perspective on the machine learning community’s efforts to develop inference procedures with Bayesian characteristics that go beyond Bayes’ Rule as an epistemological principle. I will explain why these efforts are needed, as well as the forms which they take. Focusing on some of my own contributions to the field, I will trace out some of the community’s most important milestones, as well as the challenges that lie ahead. Throughout, I will provide success stories of the field, and emphasise the new opportunities that open themselves up to us once we dare to go beyond orthodox Bayesian procedures. Keywords: Generalised Bayes; robustness; Bayesian machine learning. The talk will be streamed on MS Teams: Join the meeting now<https://teams.microsoft.com/l/meetup-join/19%3adhZ_4e_XLNJzCXPAMzTvT6BZ5KSh…> Meeting ID: 310 294 300 441 Passcode: Pmgfnq In case you missed the 1st OWABI talk by Ullriche Köthe, you can find his slides and recorded talk on the OWABI webpage<https://warwick.ac.uk/oneworldabc>. We are looking forward to seeing you all, best, Massimiliano on the behalf of the OWABI Organisers ------ Dr. Massimiliano Tamborrino Reader (Associate Professor) and WIHEA Fellow Department of Statistics University of Warwick https://warwick.ac.uk/tamborrino

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