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arXiv 2407.05488math.AP
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演化各向异性变系数Navier-Stokes方程的空间周期解:II. Serrin型解

Spatially-Periodic Solutions for Evolution Anisotropic Variable-Coefficient Navier-Stokes Equations: II. Serrin-Type Solutions

Sergey E. Mikhailov

AI总结:

本文针对粘性系数时空可变且满足松弛椭圆性条件的各向异性Navier-Stokes方程,利用Galerkin算法证明了速度在周期空间$L_2(0,T;\dot{\mathbf H}^{n/2}_{\\#σ})$中的Serrin型弱解存在性,并讨论了解的唯一性与正则性。

摘要:

我们考虑n维各向异性流体非线性Navier-Stokes方程的演化(非稳态)空间周期解,其中粘性系数张量在空间和时间上可变,并满足松弛椭圆性条件。利用Galerkin算法,我们证明了Serrin型解的存在性,即速度属于周期空间$L_2(0,T;\dot{\mathbf H}^{n/2}_{\\#σ})$的弱解,其中$n\ge 2$。还讨论了解的唯一性和正则性结果。

英文摘要:

We consider evolution (non-stationary) space-periodic solutions to the $n$-dimensional non-linear Navier-Stokes equations of anisotropic fluids with the viscosity coefficient tensor variable in space and time and satisfying the relaxed ellipticity condition. Employing the Galerkin algorithm, we prove the existence of Serrin-type solutions, that is, weak solutions with the velocity in the periodic space $L_2(0,T;\dot{\mathbf H}^{n/2}_{\#σ})$, $n\ge 2$. The solution uniqueness and regularity results are also discussed.

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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