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ON THE GLOBAL WELL-POSEDNESS OF THE 2D EULER EQUATIONS FOR A LARGE CLASS OF YUDOVICH TYPE DATA

机译:大类Yudovich型数据的二维EULER方程的全局适定性

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摘要

The study of the 2D Euler equation with non Lipschitzian velocity was initiated by Yudovich in [20] where a result of global well-posedness for essentially bounded vorticity is proved. A lot of works have been since dedicated to the extension of this result to more general spaces. To the best of our knowledge all these contributions lack the proof of at least one of the following three fundamental properties: global existence, uniqueness and regularity persistence. In this paper we introduce a Banach space containing unbounded functions for which all these properties are shown to be satisfied.
机译:Yudovich在[20]中启动了具有非Lipschitzian速度的二维Euler方程的研究,其中证明了整体界适定性对于有界旋涡的结果。自那以来,已经有很多工作致力于将这个结果扩展到更一般的空间。据我们所知,所有这些贡献都缺乏以下三个基本特性之一的证明:全局性存在,唯一性和规律性持久性。在本文中,我们介绍了一个包含无限函数的Banach空间,对于这些空间,满足所有这些性质。

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