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arXiv 2006.12342math.AP
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二维不可压Euler方程的分离变量型显式解

On the explicit solutions of separation of variables type for the incompressible 2D Euler equations

Tomi Saleva, Jukka Tuomela

摘要:

本文研究了拉格朗日框架下二维欧拉方程的显式解。所有已知的解决方案都是分离变量类型的,其中时间和空间依赖性被分开处理。第一个这样的解决方案已经在19世纪被发现。我们表明,以前已知的所有解决方案属于两个家庭的解决方案,并引入三个新的家庭的解决方案。似乎所有这些都是变量分离类型的解决方案。

英文摘要:

We study explicit solutions to the 2 dimensional Euler equations in the Lagrangian framework. All known solutions have been of the separation of variables type, where time and space dependence are treated separately. The first such solutions were known already in the 19th century. We show that all the solutions known previously belong to two families of solutions and introduce three new families of solutions. It seems likely that these are all the solutions that are of the separation of variables type.

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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