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arXiv · 2610.06134

Propagation of Energy Moments for the Plasma--Charge Model

Zhaopeng Wang
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Abstract

This paper proves propagation of energy moments for the three-dimensional plasma-charge model, namely, the repulsive Vlasov-Poisson system with a moving point charge. For every \(K>2\), an initially finite \(K\)th energy moment remains finite on every bounded time interval, without any higher-order moment assumption, smallness condition on the plasma mass, or initial separation from the point charge. The constructed global weak solution conserves total energy for almost every time. The proof relies on a critical space-time density estimate and a direct control of the electric field along the moving charge.

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Zhaopeng Wang. 2026-10-05. Propagation of Energy Moments for the Plasma--Charge Model. https://arxiv.org/abs/2610.06134

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