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arXiv 1908.01209math.AP
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可压缩Navier-Stokes-泊松方程的最优时间衰减估计

Optimal time-decay estimates for the compressible Navier-Stokes-Poisson equations without additional smallness assumptions

Weixuan Shi

摘要:

本文研究可压缩Navier-Stokes-泊松方程在远离真空的常平衡点附近整体强解的大时间渐近性态。准确地说,我们提出,在\cite{SX2}中相同的正则性假设下,建立了临界整体解的$\dot{B}_{p,1}^{s}$范数的\textit{different}时间衰减框架。证明主要依赖于纯能量参数\textit{without the spectral analysis},它允许我们删除\textit{the usual smallness assumption of low frequencies of initial data}。

英文摘要:

The present paper is dedicated to the large time asymptotic behavior of global strong solutions near constant equilibrium (away from vacuum) to the compressible Navier-Stokes-Poisson equations. Precisely, we present that under the same regularity assumptions as in \cite{SX2}, a \textit{different} time-decay framework of the $\dot{B}_{p,1}^{s}$ norm of the critical global solutions is established. The proof mainly depends on the pure energy argument \textit{without the spectral analysis}, which allows us to remove \textit{the usual smallness assumption of low frequencies of initial data}.

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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