Dear colleagues,
this is a gentle reminder of today One World Probability Seminar, details below. The seminar will be held at 15:00 (italian time).
You can find the calendar for the upcoming seminars at this linkhttps://www.owprobability.org/one-world-probability-seminar/future-seminars (next dates: May 21, June 4, June 18).
We hope to see many of you online!
Luisa and Roger
Begin forwarded message:
From: One World Probability <ow.probability@gmail.commailto:ow.probability@gmail.com> Subject: [owps] next OWPS: Matteo Quattropani and Federico Sau Date: 7. May 2025 at 18:37:32 CEST To: owps@lists.bath.ac.ukmailto:owps@lists.bath.ac.uk Reply-To: One World Probability <ow.probability@gmail.commailto:ow.probability@gmail.com>
The next OWPS will be in one week, on Wednesday, May 14, from 13:00 to 15:00 UTC time. Title, abstract and the zoom link are below the signature and can be found on the website https://www.owprobability.org/one-world-probability-seminarhttps://protect-eu.mimecast.com/s/-zGkCWqjZFlpkVlsnEyR_?domain=eur01.safelinks.protection.outlook.com.
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Quantitative Convergence to Equilibrium of Stochastic Exchange Models
Matteo Quattropani (Roma Tre University), Federico Sau (University of Milan)
In this talk, we present an overview of some quantitative aspects of convergence to equilibrium for a class of interacting particle systems that we refer to as Stochastic Exchange Models (SEM). In these models, particles interact via binary updates, exchanging a conserved quantity that can be interpreted as mass, energy, or momentum. Examples in this class include, among others, Kac’s walk, the Kipnis–Marchioro–Presutti model, and the Averaging process.
Although these processes are Markovian, many standard techniques for analyzing finite-state Markov chains are not directly applicable due to the continuum nature of the configuration space, the presence of conservation laws, or singular constraints. We will provide an overview of the models in this class, with particular emphasis on spectral gaps and mixing times.
The talk is based on a series of joint works with Pietro Caputo (Rome) and Seonwoo Kim (Seoul).
https://polimi-it.zoom.us/j/92945513591?pwd=zjtRwpHoO9kRyQuPPj4o186jXrvg1v.1
Meeting ID: 92945513591
Passcode: 131676