Special Session 114: New developments in Analysis of Mathematical Fluid Dynamics

Stability of Stationary Solutions to the Nonisentropic Euler--Poisson System in a Perturbed Half Space

Mingjie LI
Minzu University of China
Peoples Rep of China
Co-Author(s):    Masahiro Suzuki
Abstract:
The main concern of the talk is to mathematically investigate the formation of a plasma sheath near the surface of nonplanar walls. We study the existence and asymptotic stability of stationary solutions for the nonisentropic Euler-Poisson equations in a domain of which boundary is drawn by a graph, by employing a space weighted energy method. Moreover, the convergence rate of the solution toward the stationary solution is obtained, provided that the initial perturbation belongs to the weighted Sobolev space. Because the domain is the perturbed half space, we first show the time-global solvability of the nonisentropic Euler-Poisson equations, then construct stationary solutions by using the time-global solutions. This is a joint work with Professor Masahiro Suzuki.