Dynamical fluctuations of a hard sphere gas in the low density limit.

by Laure Saint-Raymond (ENS-Lyon)

Wednesday 24 Feb 2021, 14:30 → 16:00 Europe/Rome

The dynamics of a hard sphere gas is described in the low density limit by
the Boltzmann equation, at least for short times. The classical strategy of
proof, due to Lanford, fails for longer times, even close to equilibrium.
In this seminar, I will present a recent work with T. Bodineau,
I. Gallagher and S. Simonella, where we have designed a new method,
combining a duality and a pruning arguments, which allows to characterize
the fluctuations around equilibrium globally in time.

Link per il collegamento: https://meet.google.com/pip-kvzt-fkz