Moment Propagation for the Vlasov--Poisson System with Gyroscopic Forces, Velocity Diffusion, and Specular Reflection
Year: 2026
Type: preprint
Abstract: This paper studies the three-dimensional Vlasov--Poisson system with gyroscopic forces and velocity diffusion. For the Cauchy problem in $\mathbb R^3$ and the specular--Dirichlet problem in bounded domains, we prove the propagation of velocity moments of order $k>2$ for weak solutions with bounded $L^1\cap L^{\infty}$ norms and kinetic energy. The proof applies Serre's compensated integrability to weighted mass--momentum tensors to derive density estimates. A finite iteration alternating moment propagation with improved density integrability then closes the estimates. These estimates provide a simplified approach to moment propagation and yield global continuation of classical solutions.
Source: arXiv (Cornell University)
Author: Wu, Jingpeng
Language: English
Subfield: Applied Mathematics
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7222420316