Asymptotic Stability of Equilibria for Screened Vlasov–Poisson Systems via Pointwise Dispersive Estimates

Asymptotic Stability of Equilibria for Screened Vlasov–Poisson Systems via Pointwise Dispersive Estimates
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通过逐点色散估计筛选 Vlasov-Poisson 系统平衡点的渐近稳定性

DOI:
10.1007/s40818-021-00110-5
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发表时间:
2021
期刊:
影响因子:
2.8
通讯作者:
Rousset, Frédéric
Rousset, Frédéric
中科院分区:
数学1区
文献类型:
--
作者:
Han-Kwan, Daniel;Nguyen, Toan T.;Rousset, Frédéric

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我们重新讨论了由Bedrossian、Masmoudi和Mouhot首次建立的Vlasov-Poisson系统在整个空间(for)中具有筛选相互作用的稳定齐次平衡附近的Landau阻尼的证明。我们的证明遵循拉格朗日方法,并依赖于物理空间中线性化问题的精确时间点色散估计,这应该是独立的兴趣。这允许降低所需初始数据的平滑度(粗略地说,我们只需要Lipschitz规则)。此外,我们证明的时间衰减估计基本上是尖锐的,与自由传输的估计相同,直到对数修正。
We revisit the proof of Landau damping near stable homogenous equilibria of Vlasov–Poisson systems with screened interactions in the whole space(for) that was first established by Bedrossian, Masmoudi and Mouhot in . Our proof follows a Lagrangian approach and relies on precise pointwise in time dispersive estimates in the physical space for the linearized problem that should be of independent interest. This allows to cut down the smoothness of the initial data required in (roughly, we only need Lipschitz regularity). Moreover, the time decay estimates we prove are essentially sharp, being the same as those for free transport, up to a logarithmic correction.
具有屏蔽相互作用的无侧限系统的有限正则朗道阻尼
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