Seminars
A list of past seminars is avalaible here
List of upcoming seminars
Our seminars are scheduled on Monday, at 5.30 pm (Italian time), unless specified. For the list of upcoming seminars, expand the menu ticking on the arrow.
October 21th Monday, 2024 - h 14.30 at Sala seminari del blocco zero (DISIM, UnivAq). - Franco Flandoli (Scuola Normale Superiore )
Title: "Reducing stochastic models in Climate, fluctuating Hydrodynamics and turbulent transport ",
The seminar will be held at the Sala seminari del blocco zero (DISIM, UnivAq).
and will also be streamed through Zoom at the link:
https://gssi-it.zoom.us/j/87571297606?pwd=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
Title: "Statistical properties of dynamical systems: a functional analytic approach",
Roberto Castorrin (Scuola Normale di Pisa)
The seminar will be held at the GSSI Main Lecture Hall
and will also be streamed through Zoom at the link:
https://gssi-it.zoom.us/j/87571297606?pwd=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
Title: "Large deviations for binary collision models ",
Giada Basile (La Sapienza- Roma)
The seminar will be held at the GSSI Main Lecture Hall
and will also be streamed through Zoom at the link:
https://gssi-it.zoom.us/j/87571297606?pwd=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
"Large deviations for binary collision models "
Date: December 9, at 3.00 pm. (Italian time)
onsite: at GSSI Main Lecture Hall - Viale Crispi 7 (red room, see picture) ).
zoom: https://gssi-it.zoom.us/j/87571297606pwd=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
Abstract
I will present some recent results on large deviations for binary collision stochastic models. The paradigmatic model is the Kac’s walk, described, in the kinetic limit, by the homogeneous Boltzmann equation. Although the dynamics preserves the energy, atypical paths that violate energy conservation may occur with exponentially small probability in the number of particles. I will exhibit energy increasing paths, condensation-like phenomena and a phase transition for the asymptotics of the number of collisions. Finally, I will discuss a formulation of the homogeneous Boltzmann equation in terms of an entropy dissipation inequality which involves the large deviation rate function. This is a joint work with L. Bertini, D. Benedetto, E. Caglioti and D. Heydecker. Founded by the European Union - Next Generation EU