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Regularity for the Boltzmann equation conditional to macroscopic bounds

Abstract : The Boltzmann equation is a nonlinear partial differential equation that plays a central role in statistical mechanics. From the mathematical point of view, the existence of global smooth solutions for arbitrary initial data is an outstanding open problem. In the present article, we review a program focused on the non-cutoff case and dedicated to the derivation of a priori estimates in $C^\infty$, depending only on physically meaningful conditions. We prove that the solution will stay uniformly smooth provided that its mass, energy and entropy densities remain bounded, and away from vacuum.
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Preprints, Working Papers, ...
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Contributor : Cyril Imbert <>
Submitted on : Thursday, May 7, 2020 - 5:00:12 PM
Last modification on : Friday, June 12, 2020 - 11:02:06 AM

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  • HAL Id : hal-02567198, version 1
  • ARXIV : 2005.02997



Cyril Imbert, Luis Silvestre. Regularity for the Boltzmann equation conditional to macroscopic bounds. 2020. ⟨hal-02567198⟩



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