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arXiv 1004.1407math.PRmath.DS
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随机二维Euler方程点涡动力学的完全适定性

Full well-posedness of point vortex dynamics corresponding to stochastic 2D Euler equations

F. Flandoli, M. Gubinelli, E. Priola

摘要:

研究了二维周期区域上有限个点涡的运动。在确定性的情况下,已知它只对几乎每一个初始组态适定。在一定的初始条件下,涡的聚并可能发生。我们证明,当一个通用的随机扰动兼容的欧拉描述引入,点涡运动成为适定的每个初始配置,特别是合并消失。

英文摘要:

The motion of a finite number of point vortices on a two-dimensional periodic domain is considered. In the deterministic case it is known to be well posed only for almost every initial configuration. Coalescence of vortices may occur for certain initial conditions. We prove that when a generic stochastic perturbation compatible with the Eulerian description is introduced, the point vortex motion becomes well posed for every initial configuration, in particular coalescence disappears.

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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