Random

random@lists.dm.unipi.it

2 participants
5349 discussions

OWPS Tomorrow: Frank den Hollander and Elena Pulvirenti
by Alberto Chiarini 14 Feb '23

14 Feb '23

Dear all, A reminder that tomorrow (Wednesday), from 15:00 to 17:00 UTC, Frank den Hollander and Elena Pulvirenti will be speaking at the One World Probability Seminar. Titles, abstracts and the zoom link are below the signature and will also be posted on the website https://www.owprobability.org/one-world-probability-seminar. We kindly ask for your help to share this message within your community. Best wishes, Alberto Chiarini and Adrián González Casanova ---------------------- Speakers: Frank den Hollander (Leiden) and Elena Pulvirenti (Delft) Talk 1 : Metastability for the Widom-Rowlinson model: I. Planar discs. Abstract We define the static Widom-Rowlinson model on a two-dimensional finite torus. The energy of a particle configuration is determined by its halo, defined as the union of unit discs centred at the positions of the particles. We discuss the metastable behaviour of a dynamic version of the model, in which particles are randomly created and annihilated as if the outside of the torus were an infinite reservoir with a given chemical potential. We start with the empty torus and are interested in the first time when the torus is fully covered by unit discs. This can be viewed as the crossover time from a ‘gas phase’ to a ‘liquid phase’. We consider the metastable regime where the temperature is low and the chemical potential is supercritical. In order to achieve the transition from empty to full, the system needs to create a sufficiently large droplet, called critical droplet, which triggers the crossover. It turns out that the critical droplet is close to a disc of a certain deterministic radius, with a boundary that is random and consists of a large number of unit discs that stick out by a small distance. We show how an analysis of the surface fluctuations allows us to derive both a volume term and a surface term in the asymptotics of the average crossover time. Based on joint work with Sabine Jansen (Munich) and Roman Kotecký (Prague). Talk 2 : Metastability for the Widom-Rowlinson model: II. Grains of general shape. Abstract We investigate what happens when the planar discs are replaced by convex grains in arbitrary dimensions whose shape may be random. We identify the size and the shape of the critical droplet as a function of the shape distribution for the grains. We also identify the volume term in the asymptotics of the average crossover time. In addition, we speculate about the surface term, formulating a conjecture about what it should look like. There are various interesting subcases, showing that the shape of the grains has a rather delicate influence on the critical droplet and the average crossover time. Based on joint work with Yogesh Dhandapani (Bangalore) and Roman Kotecký (Prague). Zoom-link: https://unipd.zoom.us/j/89537602090?pwd=T0lETjRKaHk1R3FpWmNTbThxNTJQdz09 Meeting ID: 895 3760 2090 Passcode: 300934Time: 15:00 - 17:00 UTC If you are having trouble with zoom, or if the capacity of the zoom room gets exceeded, you can also access to the Youtube live stream at the channel of the seminar: https://www.youtube.com/channel/UCiLiEQGTp6bZEhuHDM-WNWQ

1 0

Second announcement "61 Probability Encounters, In honour of Sergey Bobkov", Toulouse, May 29th - June 2nd, 2023 (fwd)
by Michele Gianfelice 14 Feb '23

14 Feb '23

Salve, ricevo e inoltro p.c.. Cordialmente, m.gianfelice ---------- Forwarded message ---------- Date: Tue, 14 Feb 2023 13:17:46 +0100 From: Cyril ROBERTO <cyril.roberto(a)math.cnrs.fr> To: Cyril ROBERTO <cyril.roberto(a)math.cnrs.fr> Subject: Second announcement "61 Probability Encounters, In honour of Sergey Bobkov", Toulouse, May 29th - June 2nd, 2023 Dear Colleagues, You are cordially invited to participate in the conference "61 Probability Encounters, In honour of Sergey Bobkov" to be held in Toulouse, May 29th - June 2nd, 2023. A tentative list of speakers can be found below and on the dedicated webpage https://indico.math.cnrs.fr/event/8783/ Inscription is fre but mandatory. Looking very much forward to seeing you in Toulouse, With all best wishes, The organizers (Alexander Koldobsky, Michel Ledoux, Pascal Maillard, Cyril Roberto, Boguslaw Zegarlinski) P.S.: Please bring this conference to the attention of graduate students, postdocs and colleagues who may be interested. P.P.S.: Sorry for the multiple instances of the same message. List of speakers: Speakers Tentative list of speakers: Fanny Augeri (Toulouse) * Esther Bou Dagher (Imperial College of London) Pietro Caputo (Roma 3) Patrick Cattiaux (Toulouse) Andrea Colesanti (Firenze) Dario Cordero-Erausquin (Paris) Eskenazis, Alexandros (Paris) Max Fathi (Paris) Fradelizi, Matthieu (Marne la Vallée) Friedrich Götze (Bielefeld) Michael Goldman (Paris) Nathael Gozlan (Paris Descartes) Diana Halikias (Cornell) Alderic Joulin (Toulouse) Gil Kalai* Klartag Boaz (Weizmann) Rafal Latala (Warsaw) Galina Livshyts (Georgia Tec) Mokshay Madiman (Delaware, USA) James Melbourne (CIMAT, Guanajuato, Mexico) Emanuel Milman (Technion) Mario Milman (Florida) Oleszkiewicz, Krzysztof (Warsaw) Marta Strzelecka (Warsaw) Liran Rotem (Technion) Ramon van Handel ( Princeton) Volberg, Alexander Feng-Yu Wang Artem Zvavitch (Kent) * = To be confirmed.

1 0

Seminario di Luisa Andreis
by Lorenzo Taggi 14 Feb '23

14 Feb '23

Buongiorno, si trasmette il link per seguire il seminario di Luisa Andreis (Politecnico di Milano) tramite Zoom: https://uniroma1.zoom.us/j/84073069369 Martedì 14 Febbraio, ore 14:00 Sala di Consiglio, Dipartimento di Matematica, Sapienza Università di Roma *Title: *Rare events in sparse random graphs *Abstract:* Rare events for dense random graphs are well described using the theory of large deviations and graphons. When graphs are sparse the picture is less clear, objects that describe globally the graphs and their limits, as graphons do for dense graphs, have not been defined yet. Nevertheless we do have information on how these graphs look like when explored locally from a vertex and this, under some assumptions, gives also information on global properties. In this talk we will give an overview on what is known on rare events in this regime, focusing in particular on large deviation statements on connected components in inhomogeneous random graphs and on links with coagulation processes. This talk is based on joint works with Wolfgang König (WIAS and TU Berlin), Tejas Iyer, Heide Langhammer, Elena Magnanini and Robert Patterson (WIAS).

1 0

LUISS math seminar, Nizar Touzi, February 16
by Sara 13 Feb '23

13 Feb '23

Dear all, Next Thursday at 12 in Room 205 AB, Viale Romania campus, prof Nizar Touzi, Ecole Polytecnique de France, will hold a seminar on Mean field optimal stopping. Please find here below the link for online participation. Best regards, Sara. Aula 205 AB: https://luiss.webex.com/luiss-en/j.php?MTID=m06a4652aadea0b95313628c0601f89… User: w_guest(a)luiss.it Password: iA0JKPgy38 > >>

1 0

Post-doc position at University of Amsterdam
by Chiara AMORINO 13 Feb '23

13 Feb '23

Dear colleagues, Let me bring this opening for a post-doc position to your attention: The Department of Mathematics of Vrije Universiteit Amsterdam welcomes applications for a three-year Postdoctoral position in Statistics with emphasis on statistical inference for stochastic processes, graphical models, computational statistics and Bayesian computation. Good programming skills and being able to connect to existing research strengths in the department are assets. The preferred starting date is 1 September 2023 or earlier. Full information on the position can be found at https://workingat.vu.nl/ad/postdoctoral-position-in-statistics/riljhf<https://urldefense.com/v3/__https://workingat.vu.nl/ad/postdoctoral-positio…> Best, Chiara

1 0

PhD position open at University of Oslo
by Giulia Di Nunno 13 Feb '23

13 Feb '23

Dear colleagues, Let me bring this opening for a Phd position to your attention. This is at the University of Oslo with directions relevant for the areas of this network. The deadline for application is on February 28tj. More details can be read at the page linked here below. Please help us distribute this information among your contacts and students. Thank you for your kind attention. Best regards, Giulia Di Nunno Professor Department of Mathematics University of Oslo, Norway <https://www.jobbnorge.no/en/available-jobs/job/239395/phd-research-fellow-i…> [0fc5336a-1434-4f84-9420-e0b6c595be5b.jpg] PhD Research Fellow in Stochastics, Differential Equations, and Risk (239395) | Universitetet i Oslo<https://www.jobbnorge.no/en/available-jobs/job/239395/phd-research-fellow-i…> jobbnorge.no<https://www.jobbnorge.no/en/available-jobs/job/239395/phd-research-fellow-i…> Giulia Di Nunno Professor Department of Mathematics University of Oslo, Norway

1 0

Reminder: Special Issue "Advances in Optimal Control and Dynamic Games in Economics, Finance and Insurance" for the journal "Decisions in Economics and Finance"
by Ferrari, Giorgio 12 Feb '23

12 Feb '23

Dear Colleagues, this is to remind about the Special Issue "/Advances in Optimal Control and Dynamic Games in Economics, Finance and Insurance/" for the journal "Decisions in Economics and Finance": https://www.springer.com/journal/10203/updates/23587054 This special issue aims at collecting research papers on the novel advances of optimal control (in a deterministic and stochastic setting) and differential games (N-player and of mean-field type) and their applications in Economics, Finance, and Insurance. Papers can be submitted during the time-window *01.11.2022 -- 30.06.2023*. The first round of review will be terminated by *30.10.2023* and the selected papers will be published on-line on the journal's webpage by *February 2024*. Instructions about the submission's rules can be found in the Section "Manuscript Submission" of the web-page https://www.springer.com/journal/10203/updates/23587054 Looking forward to receiving your contributions, all the best wishes, Salvatore Federico, Giorgio Ferrari, Luca Regis

1 0

Summer School "Risk and Uncertainty in Economics, Finance and Insurance" (Bielefeld, July 3-7, 2023)
by Ferrari, Giorgio 12 Feb '23

12 Feb '23

Dear Colleagues, we are happy to announce the Summer School "/Risk and Uncertainty in Economics, Insurance and Finance/", which will be held at Bielefeld University in the period *July 3-7, 2023.* The summer school will take place the week after the /11th General AMaMeF Conference/ ( https://sites.google.com/view/amamef-2023/overview ) and it is part of the /Activity Month //2023/ of the CRC 1283 ( https://www.sfb1283.uni-bielefeld.de/Workshops/activitymonth/2023 ). The summer school consists of the three lectures: * /Mean Field Games with Applications in Economics/, by Fernando Alvarez (University of Chicago) * /Sharing and Managing Risk through Insurance: Markets and Models/, by Daniel Bauer (University of Wisconsin-Madison) * /Knightian Uncertainty and Statistics/, by Tommaso Denti (Cornell University) which will be then complemented by selected talks held by the participants. Further details can be found here: https://sites.google.com/view/summer-school-23/overview *The registration will open at the end of March.* All the best wishes and looking forward to welcoming you in Bielefeld in the Summer 2023, Giorgio Ferrari and Frank Riedel

1 0

Reminder: Special Issue "Advances in Optimal Control and Dynamic Games in Economics, Finance and Insurance" for the journal "Decisions in Economics and Finance"
by Ferrari, Giorgio 12 Feb '23

12 Feb '23

1 0

Seminario Prof.ssa Yuliya Mishura
by Enrica Pirozzi 12 Feb '23

12 Feb '23

*** AVVISO di SEMINARIO Prof.ssa Yuliya Mishura Department of Probability, Statistics and Actuarial Mathematics, Taras Shevchenko National University of Kyiv, Kyiv (Ukraine) TITLE: Cox-Ingersoll-Ross processes, their properties and statistical estimation. Abstract: We consider CIR processes driving by standard Wiener processes and study their properties depending on the number of degrees of freedom. Statistical parameter estimation is discussed. Il seminario si terrà il giorno 15 Febbraio 2023 ore 11:30 nella Aula G del Dipartimento Matematica e Applicazioni, Università di Napoli FEDERICO II, Complesso di Monte Sant'Angelo, Via Cintia, Napoli. Link to Teams: https://teams.microsoft.com/l/meetup-join/19%3aMQ4RZDBo_0G-K_PHxKtktVYAczOG… *** -- Enrica Pirozzi Dipartimento di Matematica e Applicazioni Universita' di Napoli FEDERICO II Via Cintia, Monte S.Angelo, 80126, NAPOLI, ITALY Tel. 081 675634 https://www.docenti.unina.it/ENRICA.PIROZZI

1 0

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

Random