Hydrodynamic limit for the non-cutoff Boltzmann equation
Chuqi Cao
The Hong Kong Polytechnic University, Hong Kong, P. R. ChinaKleber Carrapatoso
Institut Polytechnique de Paris, Palaiseau, France
Abstract
This work deals with the non-cutoff Boltzmann equation for all types of potentials, in both the torus and in the whole space , under the incompressible Navier–Stokes scaling. We first establish the well-posedness and decay of global mild solutions to this rescaled Boltzmann equation in a perturbative framework, that is, for solutions close to the Maxwellian, obtaining in particular integrated-in-time regularization estimates. We then combine these estimates with spectral-type estimates in order to obtain the strong convergence of solutions to the non-cutoff Boltzmann equation towards the incompressible Navier–Stokes–Fourier system.
Cite this article
Chuqi Cao, Kleber Carrapatoso, Hydrodynamic limit for the non-cutoff Boltzmann equation. Ann. Inst. H. Poincaré C Anal. Non Linéaire (2024), published online first
DOI 10.4171/AIHPC/139