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arXiv 1608.06115math.AP
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连续性方程的最优稳定性估计

Optimal stability estimates for continuity equations

Christian Seis

摘要:

本文讨论了在DiPerna-Lions背景下平流速度场为Sobolev正则的连续性方程的稳定性分析。该方程的定量估计最近才得到(Seis 2016),但没有讨论最优性。在本文中,我们重新审视了(Seis 2016)的结果,将新的估计与先前已知的拉格朗日流估计进行了比较,例如(Crippa & De Lellis 2008),并最终演示如何应用这些方法来产生物理,工程或数值应用中的最优边界。

英文摘要:

This review paper is concerned with the stability analysis of the continuity equation in the DiPerna--Lions setting in which the advecting velocity field is Sobolev regular. Quantitative estimates for the equation were derived only recently (Seis 2016), but optimality was not discussed. In this paper, we revisit the results from (Seis 2016), compare the new estimates with previously known estimates for Lagrangian flows, e.g.\ (Crippa & De Lellis 2008), and finally demonstrate how those can be applied to produce optimal bounds in applications from physics, engineering or numerics.

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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