Special Session 128: Recent Advances in Kinetic Theory and Related Applications

Landau damping, collisionless limit, and stability threshold for the Vlasov-Poisson equation with nonlinear Fokker-Planck collisions

Weiren Zhao
New York University Abu Dhabi
United Arab Emirates
Co-Author(s):    
Abstract:
In this talk, I will present a recent work about the asymptotic stability of the global Maxwellian for the Vlasov-Poisson-Fokker-Planck (VPFP) equation with a small collision frequency. Our main result establishes the Landau damping and enhanced dissipation phenomena under the condition that the perturbation of the global Maxwellian falls within the Gevrey-1/s class and obtains that the stability threshold for the Gevrey-1/s class with $s>s_k$ can not be larger than $\gamma=\frac{1-3s_{k}}{3-3s_{k}}$ for $s_{k}\in [0,1/3]$.