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arXiv 2005.14152math.AP
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Navier-斯托克斯方程解的整体正则性

Global regularity for solutions of the Navier-Stokes equation sufficiently close to being eigenfunctions of the Laplacian

Evan Miller

摘要:

在本文中,我们将证明一个新的,规模临界正则性准则的解决方案的Navier-斯托克斯方程,是足够接近的拉普拉斯算子的本征函数。该估计将需要对具有$2\leq α<\frac{5}{2},$的$u,$的$\dot{H}^α$范数进行控制的先前正则性准则改进为需要对$\dot{H}^α$范数乘以用于嵌入$\dot{H}^{α-2}\cap\dot{H}^α \hookrightarrow \dot{H}^{α-1}.$的插值不等式中的赤字进行控制的正则性准则。Navier-斯托克斯方程的位势爆破解与湍流理论中的Kolmogorov-Obhukov谱之间存在某种联系的可能性。

英文摘要:

In this paper, we will prove a new, scale critical regularity criterion for solutions of the Navier--Stokes equation that are sufficiently close to being eigenfunctions of the Laplacian. This estimate improves previous regularity criteria requiring control on the $\dot{H}^α$ norm of $u,$ with $2\leq α<\frac{5}{2},$ to a regularity criterion requiring control on the $\dot{H}^α$ norm multiplied by the deficit in the interpolation inequality for the embedding of $\dot{H}^{α-2}\cap\dot{H}^α \hookrightarrow \dot{H}^{α-1}.$ This regularity criterion suggests, at least heuristically, the possibility of some relationship between potential blowup solutions of the Navier--Stokes equation and the Kolmogorov-Obhukov spectrum in the theory of turbulence.

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