Abstract for the talk at 22.11.2012 (16:00 h)

Ladyzhenskaya Vorlesung
Laure Saint-Raymond (Ecole Normale Supérieur, Paris)
The irreversibility in gas dynamics, a matter of probability
The goal of this lecture is to present a derivation of the Boltzmann equation starting from the hamiltonian dynamics of particles in the Boltzmann-Grad limit, i.e. when the number of particles N →∞ and their size ϵ → 0 with Nϵ2 = 1. We will especially discuss the origin of irreversibility and the phenomenon of relaxation towards equilibrium, which are apparently paradoxical properties of the limiting dynamics.
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01.03.2017, 13:57