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On smooth solutions to the thermostated Boltzmann equation with deformation

Authors :
Duan, Renjun
Liu, Shuangqian
Source :
Communications in Mathematical Analysis and Applications (2022)
Publication Year :
2021

Abstract

This paper concerns a kinetic model of the thermostated Boltzmann equation with a linear deformation force described by a constant matrix. The collision kernel under consideration includes both the Maxwell molecule and general hard potentials with angular cutoff. We construct the smooth steady solutions via a perturbation approach when the deformation strength is sufficiently small. The steady solution is a spatially homogeneous non Maxwellian state and may have the polynomial tail at large velocities. Moreover, we also establish the long time asymptotics toward steady states for the Cauchy problem on the corresponding spatially inhomogeneous equation in torus, which in turn gives the non-negativity of steady solutions.<br />Comment: 39 pages. Typos are corrected and the estimates for c in the proof of Lemma 3.1 are simplified with some corrections. All comments are welcome

Details

Database :
arXiv
Journal :
Communications in Mathematical Analysis and Applications (2022)
Publication Type :
Report
Accession number :
edsarx.2112.11599
Document Type :
Working Paper
Full Text :
https://doi.org/10.4208/cmaa.2021-0004