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Journées équations aux dérivées partielles

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Isabelle Gallagher
From classical mechanics to kinetic theory and fluid dynamics
Journées équations aux dérivées partielles (2014), Exp. No. 2, 14 p., doi: 10.5802/jedp.105
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Résumé - Abstract

In these notes we report on a work in collaboration with Thierry Bodineau and Laure Saint-Raymond, where we show how the heat equation can be obtained from a deterministic system of hard spheres when the number of particles goes to infinity while their radius simultaneously goes to zero. As suggested by Hilbert in his sixth problem, the kinetic theory of Boltzmann is used as an intermediate level of description.

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