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arXiv 1703.03046math.AP
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Orlicz空间中具有空间密度的Vlasov-Poisson系统的唯一性和稳定性

Uniqueness and stability for the Vlasov-Poisson system with spatial density in Orlicz spaces

Thomas Holding, Evelyne Miot

摘要:

本文建立了一类空间密度属于Orlicz空间的Vlasov-Poisson方程组解的唯一性。这推广了Loeper的唯一性结果(对一致有界密度成立)和第二作者的唯一性结果。唯一性是我们的主要结果的直接后果,它提供了一个定量的稳定性估计的Wasserstein距离之间的两个弱解空间密度在这样的Orlicz空间,在精神的Dobrushin的证明稳定的平均场偏微分方程。我们的证明是建立在与方程相关的基本特征系统的二阶结构上。

英文摘要:

In this paper, we establish uniqueness of the solution of the Vlasov-Poisson system with spatial density belonging to a certain class of Orlicz spaces. This extends the uniqueness result of Loeper (which holds for uniformly bounded density) and the uniqueness result of the second author. Uniqueness is a direct consequence of our main result, which provides a quantitative stability estimate for the Wasserstein distance between two weak solutions with spatial density in such Orlicz spaces, in the spirit of Dobrushin's proof of stability for mean-field PDEs. Our proofs are built on the second-order structure of the underlying characteristic system associated to the equation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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