Stability of global equilibrium for the multi-species Boltzmann equation in $L^\infty$ settings
Résumé
We prove the stability of global equilibrium in a multi-species mixture , where the different species can have different masses, on the 3-dimensional torus. We establish stability estimates in L ∞ x,v (w) where w = w(v) is either polynomial or exponential, with explicit threshold. Along the way we extend recent estimates and stability results for the mono-species Boltzmann operator not only to the multi-species case but also to more general hard potential and Maxwellian kernels.
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