May 2023 - Random - Mailing list — Dipartimento di Matematica, UniPI

seminario Francois Baccelli 24 maggio
by Daniela De Canditiis 21 May '23

21 May '23

Buongiorno a tutti, il prossimo appuntamento del ciclo Seminari generali IAC si terrà Mercoledì 24 Maggio ore 14:30 sul Canale Youtube Cnr-IAC al link https://www.youtube.com/watch?v=JgsmwZg7eAg con Francois Baccelli Title High dimensional stochastic geometry in the Shannon regime Abstract This talk will focus on Euclidean stochastic geometry in the Shannon regime. In this regime, the dimension n of space tends to infinity, point processes have intensities which are exponential functions of n, and the random compact sets have diameters of order square root of n. Three basic models of stochastic geometry based on Poisson processes will be considered: the Boolean model, the Poisson-Voronoi tessellation and the Poisson hyperplane tessellation. We will show how to calculate the asymptotic behavior of the classical quantities of stochastic geometry for these three models in the Shannon regime: for the Boolean model, the volume fraction, the percolation threshold or the size of the connected components; for tessellations, statistics of geometric properties of cells (volume, diameter, etc.). These questions are motivated by problems in information theory, including the calculation of error exponents for channel coding based on random codes and calculating the distortion in the one-bit compression-based source coding. Survey of work in collaboration with Venkat Anantharam (UC Berkeley) and Eliza O'Reilly (Caltech). Area degli allegati Visualizza anteprima video YouTube Seminari generali IAC 2023: Francois Baccelli <https://www.youtube.com/watch?v=JgsmwZg7eAg&authuser=0> <https://www.youtube.com/watch?v=JgsmwZg7eAg&authuser=0> grazie -- Daniela De Canditiis, PhD Istituto per le Applicazioni del Calcolo "M.Picone" (CNR) via dei Taurini, 19 -- 00185 Roma, Italy tel: +39 06 49937342 fax: +39 06 4404306 https://www.iac.cnr.it/personale/daniela-de-canditiis

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bando PA SECS-S/06 a Verona, Dipartimento di Scienze Economiche, scadenza 15/6/2023
by Cecilia Mancini 20 May '23

20 May '23

Il Dipartimento di Scienze Economiche dell'Università degli Studi di Verona ha bandito una procedura selettiva per PROFESSORE ASSOCIATO, nel settore SECS-S/06 Metodi matematici dell'economia e delle scienze attuariali e finanziarie Il bando è uscito nella Gazzetta Ufficiale - IV Serie Speciale n. 37 del 16/05/2023 Ed è disponibile alla pagina concorsi del sito web di Ateneo all'indirizzo: https://www.univr.it/.../chiamata-professore.../11517<https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.univr.it%2Fit%2Fconcorsi%2…> con Cod. 2023pa18003 La scadenza per la presentazione delle domande è il 15 GIUGNO 2023 alle ore 20.00 Saluti, Cecilia

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Tenure-Track Assistant professor in Statistics @University of Milan
by Luca Rossini 19 May '23

19 May '23

Dears, We are hiring a tenure-track assistant professor (RTDB) in Statistics at University of Milan. The candidate should hold a Ph.D. degree in Statistics or Econometrics or Economics or equivalent, from an Italian or foreign university, she/heshould have at least three years as a post doc or lecturer position or being in possession of the Italian habilitation. The knowledge of Italian is not required. The *baseline gross salary is approximatively 44.000€* per annum for *3 years and tenure (as an associate professor) in possession of the Italian Habilitation**. * *Important tax reductions *may apply for 5 or more years according to the Italian rules for candidates who reside abroad. The department of Economics, Management and Quantitative methods was selected for a second consecutive five-year period (2023-2027) as one of the "Departments of Excellence" (Dip di Eccellenaa) by the Italian Ministry of University and Research (MIUR). Here is the link to the *detailed description of the procedure*: https://www.unimi.it/en/node/46828 (Deadline 12 June 2023). If you have questions, feel free to send an email to ceeds(a)unimi.it Best regards Luca Rossini -- Dr. Luca Rossini Lecturer (Assistant Professor Tenure Track) in Statistics, Department of Economics, Management and Quantitative Methods University of Milan (Statale), Italy email:luca.rossini87@gmail.com luca.rossini(a)unimi.it skype: luca.rossini14 web:https://lucarossini.wixsite.com/luca-rossini

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SPASS Seminar: Francesco Russo
by Andrea Agazzi 19 May '23

19 May '23

Dear Colleagues, We would like to invite you to the following SPASS <https://sites.google.com/unipi.it/spass> seminar, jointly organized by UniPi, SNS, UniFi and UniSi: *Semimartingales with jumps, weak Dirichlet processes and path-dependent martingale problems* by *Francesco Russo* (ENSTA-Paris) The seminar will take place on *TUE, 23.05.2023* at *14:00 CET* in Aula Seminari, Department of Mathematics, University of Pisa and streamed online here <https://meet.google.com/gji-phwo-vbg>. The organizers, A. Agazzi, G. Bet, A. Caraceni, F. Grotto, G. Zanco https://sites.google.com/unipi.it/spass -------------------------------------------- *Abstract: In this talk we will revisit the notion of weak Dirichlet process which is the natural extension of semimartingale with jumps. If X is such a process, then it is the sum of a local martingale M and a martingale ortogonal process A in the sense that [A, N] = 0 for every continuous local martingale N . We remark that if [A] = 0 then X is a Dirichlet process. The notion of Dirichlet process is not very suitable in the jump case since in this case A is forced to be continuous.The talk will discuss the following points.1. To provide a (unique) decomposition which is also new for semimartingales with jumps.2. To discuss some new stability theorem for weak Dirichlet processes through C^{0,1} transformations.3. To discuss various examples of such processes arising from path-dependent martingale problems. This includes path-dependent stochastic differential equations involving a distributional drift and with jumps.The talk is based on a joint paper with E. Bandini (Bologna).*

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third edition of: the mathematics of subjective probability
by Pietro Rigo 19 May '23

19 May '23

This is to announce the 3rd edition of the workshop on The Mathematics of Subjective Probability<https://www.msp2023.campus.unimib.it/>: Topics in economics and probability to be held at the University Milano-Bicocca in Milan on 11-13 September 2023. Invited speakers are: * Mathias Beigleböck (Wien University); * Alain Chateauneuf (Paris School of Economics); * Giorgio Fabbri (University of Grenoble); * Fabio Maccheroni (Bocconi University); * Max Nendel (University of Bielefeld); * Giuseppe Savaré (Bocconi University); * Nizar Touzi (Ecole Polytechnique); * Vladimir Vovk (Royal Holloway, London). The registration<https://www.msp2023.campus.unimib.it/registration> is free but mandatory. Deadline for registering is 31st July. Feel free to circulate this announcement to anyone who may be interested in the workshop. Best wishes, Gianluca Cassese, Federica Masiero, Pietro Rigo, Barbara Vantaggi

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Seminar by G. Giorgio at UniMiB [23 May]
by Maurizia Rossi 18 May '23

18 May '23

Dear colleagues, I am glad to announce the following Probability Seminar Speaker: *Giacomo Giorgio* (Università di Roma "Tor Vergata") *Title:* Bivariate fractional Ornstein-Uhlenbeck process: basic properties and estimators. *Abstract:* Please, see the attached file. *Date and time:* Tuesday *23 May,* *15:30*-16:30, *Aula 3014* Building *U5*/RATIO, Univ. *Milano-Bicocca*. Best regards, Maurizia Rossi -- Maurizia Rossi Dipartimento di Matematica e Applicazioni Università degli Studi di Milano-Bicocca https://mauriziarossi.wordpress.com

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Seminar: Rongfeng Sun at Tor Vergata
by Michele Salvi 18 May '23

18 May '23

Dear all, On Wednesday, May 24th, at 14h00 in Aula 2001 (change of usual place! Aula 2001 is on the top floor of the Math Department, close to the copy shop) at Roma Tor Vergata, RoMaDS (https://www.mat.uniroma2.it/~rds/about.php) will host Rongfeng Sun (NUS Singapore) with the seminar “A new correlation inequality for Ising models with external fields" Abstract: We study ferromagnetic Ising models on finite graphs with an inhomogeneous external field. We show that the influence of boundary conditions on any given spin is maximised when the external field is identically 0. One corollary is that spin-spin correlation is maximised when the external field vanishes. In particular, the random field Ising model on Z^d, d ≥ 3, exhibits exponential decay of correlations in the entire high temperature regime of the pure Ising model. Another corollary is that the pure Ising model on Z^d, d ≥ 3, satisfies the conjectured strong spatial mixing property in the entire high temperature regime. Based on joint work with Jian Ding and Jian Song. We encourage in-person partecipation. Should you be unable to come, here is the link to the Teams streaming: https://teams.microsoft.com/l/meetup-join/19%3arfsL73KX-fw86y1YnXq2nk5VnZFw… . The seminar is part of the Excellence Project MatMod@TOV.

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13th International Conference on Extreme Value Analysis
by Simone Padoan 18 May '23

18 May '23

A tutti gli interessati The 13th International Conference on Extreme Value Analysis that will be hosted by Bocconi University from June 26 to June 30, 2023 in Milan. Please, see https://dec.unibocconi.eu/research/extreme-value-analysis-eva-2023 The EVA conference aim is to bring together researchers in Extreme Value Theory, Methods and its Applications. The conference will be concerned with a broad spectrum of topics ranging from * Heavy-tailed phenomena; * Time series; Large deviations; * Multivariate modelling; Rare events; * Spatio-temporal processes; to * Machine Learning; * Graphical Modelling; * Big data; * Networks; and will include many important applications such as * Energy Systems; * Climate; * Public Health; * Epidemiology; * Life Sciences; * Insurance and Finance. The registration is still open, please visit the subsection "Registration" of the conference website, https://dec.unibocconi.eu/research/extreme-value-analysis-eva-2023 Yours sincerely,  Simone Padoan - chair of the organising committee  Clément Dombry - chair of the scientific committee [La tua firma può scrivere un futuro. Aiuta gli studenti meritevoli a costruire il proprio. Dai il tuo 5x1000 alla Bocconi C.F. 80024610158] <https://giving.unibocconi.it/5x1000> Please note that the above message is addressed only to individuals filing Italian income tax returns. 5x1000 is a percentage of Italian personal income tax that taxpayers can allocate to Universities, scientific research and non profit organizations.

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Seminario di Davide Gabrielli alla Sapienza
by Faggionato, Alessandra 17 May '23

17 May '23

Buongiorno, Martedì 23 Maggio alle ore 14:00 in Sala di Consiglio (Dipartimento di Matematica, Università La Sapienza) avrà luogo il seguente seminario: Speaker: Davide Gabrielli (Università dell'Aquila) Title: HIDDEN TEMPERATURE IN THE KIPNIS-MARCHIORO-PRESUTTI MODEL Abstract: Stationary non equilibrium states (SNS) have a rich and complex structure. The large deviations rate functionals for the empirical measure of a few one dimensional SNS of stochastic interacting systems have been computed, among which the boundary driven exclusion process and Kipnis-Marchioro-Presutti (KMP) model. The corresponding rate functionals are not local due to the presence of long range correlations. We show for the KMP model that this can be explained by introducing new variables that can be interpreted naturally as the temperatures of the oscillators that are exchanging the energies. When two oscillators exchange energy they thermalize at the same time. We deduce that the invariant measure of the boundary driven KMP model is a mixture of inhomogeneous products of exponential distributions, the law of the mixture is the invariant measure of the auxiliary temperature process. This is a joint work with Anna De Masi and Pablo Ferrari. We show moreover that a similar representation of the invariant measure holds also for the boundary driven harmonic model; in this case the hidden variables are distributed according to the order statistics of uniform random variables. This is a joint work with G. Carinci, C. Franceschini, C. Giardinà and D. Tsagkarogiannis. Grazie dell'attenzione Saluti Alessandra -- ************************************************* Prof. Alessandra Faggionato https://www1.mat.uniroma1.it/people/faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 5, Phone (0039) 06 49913252 *************************************************

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Second Call: Workshop: "Junior Researchers in Stochastic Optimal Control" in Berlin, Aug 31/Sep 1, 2023
by Körber, Laura Claudia 17 May '23

17 May '23

Dear colleagues, Let us draw your attention to the workshop for --- JUNIOR RESEARCHERS IN STOCHASTIC OPTIMAL CONTROL (JRSOC) --- jointly organized and supported by the IRTG 2544 “Stochastic analysis in interaction” (Berlin), the TU Berlin, the WIAS Berlin, and the EPSRC CDT “Mathematics of Random Systems” (University of Oxford). The workshop will take place in presence in Berlin from Thursday, August 31, to Friday, September 1, 2023. The workshop is intended to offer junior researchers in Stochastic Optimal Control a platform to extend their knowledge in the field, to present and discuss their own work, and to possibly initiate future collaborations. With five keynote lectures given by distinguished researchers and a number of contributed talks, the workshop aims at covering the latest developments and classical topics in Stochastic Optimal Control including Machine Learning, Mathematical Finance, Mean Field Models, Infinite Dimensional Problems, Stochastic Games, and many more. The keynote lectures will be given by: -- Roxana Dumitrescu (King’s College London), -- Johannes Muhle-Karbe (Imperial College London), -- David Siska (University of Edinburgh), -- Peter Tankov (ENSAE Paris), -- Gianmario Tessitore (University Milano-Bicocca). We warmly invite junior researchers to apply for contributed talks and/or financial support. The deadline for both is May 31, 2023. Registration to the workshop is free but mandatory, and possible until June 30, 2023. More details can be found on the conference website under: --- https://www.wias-berlin.de/workshops/JRSOC23/ --- We are looking forward to welcoming you in Berlin. In case of further questions, please do not hesitate to contact us per e-mail at jrsoc23(a)wias-berlin.de. Best regards, The Organizing Committee Peter Bank, Sebastian Ertel, Sascha Gaudlitz, Yifan Jiang, Hannes Kern, Laura Körber, Alexander Merkel, Shyam Popat, Emanuel Rapsch, Thomas Wagenhofer

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