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Global weak solutions for the Vlasov-Poisson system with a point charge

机译:带点电荷的Vlasov-Poisson系统的整体弱解

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摘要

We study the dynamics of three-dimensional Vlasov-Poisson system in the presence of a point charge with attractive interaction. Compared to the repulsive interaction, we cannot get a priori conversation law. Nevertheless, we are able to obtain bound of kinetic energy by introducing a Lyapunov functional. Combining this result with the concept of Diperna-Lions flow, we establish global existence of weak solutions for this system. Copyright (C) 2014 JohnWiley & Sons, Ltd.
机译:我们研究了具有吸引力相互作用的点电荷存在下的三维Vlasov-Poisson系统的动力学。与排斥互动相比,我们无法获得先验的对话定律。然而,我们能够通过引入Lyapunov函数获得动能的界。将该结果与Diperna-Lions流的概念相结合,我们建立了该系统弱解的全局存在性。版权所有(C)2014 JohnWiley&Sons,Ltd.

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