Analytic solutions for Vlasov equations with nonlinear zero-moment dependence

Abstract: We consider nonlinear Vlasov-type equations involving powers of the zero-order moment and obtain a local existence and uniqueness result within a framework of analytic functions. The proof employs a Banach fixed point argument, where a contraction mapping is built upon the solutions of a corresponding linearized problem. At a formal level, the considered nonlinear kinetic equations are derived from a generalized Vlasov-Poisson type equation under zero-electron-mass and quasi-neutrality assumptions, and are related to compressible Euler equations through monokinetic distributions.