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arXiv 2202.11536math.AP
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无垂向粘性的三维Navier-斯托克斯方程的大的整体解

Large, global solutions to the three-dimensional the navier-stokes equations without vertical viscosity

Isabelle Gallagher, Alexandre Yotopoulos

摘要:

本文研究了三维、齐次、不可压Navier-斯托克斯方程在一个方向上无粘性时的解。它表明,有任意大的初始数据生成一个唯一的全局解,其主要特点是,他们是缓慢变化的方向,粘度是失踪。困难的产生是因为在这个方向上完全没有规则化的效果。非线性项的特殊结构,结合速度场的无发散条件,是获得结果的关键。

英文摘要:

The three-dimensional, homogeneous, incompressible Navier-Stokes equations are studied in the absence of viscosity in one direction. It is shown that there are arbitrarily large initial data generating a unique global solution, the main feature of which is that they are slowly varying in the direction where viscosity is missing. The difficulty arises from the complete absence of a regularising effect in this direction. The special structure of the nonlinear term, joint with the divergence-free condition on the velocity field, is crucial in obtaining the result.

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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