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arXiv 1604.07643math.AP
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关于$\Bbb R^3$中定常斯托克斯方程的Liouville型定理

On Liouville type theorems for the steady Navier-Stokes equations in $\Bbb R^3$

Dongho Chae, Joerg Wolf

摘要:

本文在$\Bbb R^3$中证明了定常Navier-斯托克斯方程的三个不同的Liouville型定理。在第一个定理中,我们在数学上改进了著名的$L^{\frac92} (\Bbb R^3)$结果。在第二个定理中,我们给出了一个关于水头压力$Q=\frac12 |v|^2 +p$的解($v=0$)平凡的充分条件。这里的可积性条件与狄利克雷积分具有相同的标度性质。在最后一个定理中,我们提出了Fubini型条件,它保证了$v=0$。

英文摘要:

In this paper we prove three different Liouville type theorems for the steady Navier-Stokes equations in $\Bbb R^3$. In the first theorem we improve logarithmically the well-known $L^{\frac92} (\Bbb R^3)$ result. In the second theorem we present a sufficient condition for the trivially of the solution($v=0$) in terms of the head pressure, $Q=\frac12 |v|^2 +p$. The imposed integrability condition here has the same scaling property as the Dirichlet integral. In the last theorem we present Fubini type condition, which guarantee $v=0$.

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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