arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.10222math.AP
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无结构假设的三维Prandtl方程在Gevrey函数空间中的适定性

Well-posedness in Gevrey function space for 3D Prandtl equations without Structural Assumption

Wei-Xi Li, Nader Masmoudi, Tong Yang

摘要:

在没有任何结构性假设的情况下,证明了三维Prandtl系统在Gevrey函数空间中的最优正则类为2的适定性.该证明以一种新颖的方式将系统中的一种新的抵消与一些旧的思想结合起来,克服了系统中导数损失的困难,这表明导致不适定性的系统中的三维不稳定性并不比二维不稳定性更糟。

英文摘要:

We establish the well-posedness in Gevrey function space with optimal class of regularity 2 for the three dimensional Prandtl system without any structural assumption. The proof combines in a novel way a new cancellation in the system with some of the old ideas to overcome the difficulty of the loss of derivatives in the system.This shows that the three dimensional instabilities in the system leading to ill-posedness are not worse than the two dimensional ones.

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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