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arXiv 1307.7837math.AP
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外区域上Navier-Stokes方程组解的渐近性

Asymptotics of solutions to the Navier-Stokes system in exterior domains

Dragos Iftimie, Grzegorz Karch, Christophe Lacave

摘要:

本文研究了在具有$n\geq2$的$\mathbb{R}^n$的外部区域上具有Dirichlet边界条件的不可压Navier-Stokes方程.我们比较长时间的行为的解决方案,这个初边值问题的长期行为的解决方案的类似柯西问题在整个空间$\mathbb{R}^n$。我们发现,无论是在弱$L^{n}$-空间中的小初始数据的情况下,还是对于某一类大初始数据,这两个问题的解的长时间渐近性都是一致的。

英文摘要:

We consider the incompressible Navier-Stokes equations with the Dirichlet boundary condition in an exterior domain of $\mathbb{R}^n$ with $n\geq2$. We compare the long-time behaviour of solutions to this initial-boundary value problem with the long-time behaviour of solutions of the analogous Cauchy problem in the whole space $\mathbb{R}^n$. We find that the long-time asymptotics of solutions to both problems coincide either in the case of small initial data in the weak $L^{n}$-space or for a certain class of large 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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