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arXiv 2102.07759math.AP
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对流-扩散方程的最优稳定性估计和一个新的唯一性结果

Optimal stability estimates and a new uniqueness result for advection-diffusion equations

Víctor Navarro-Fernández, André Schlichting, Christian Seis

摘要:

本文包含两个主要贡献。首先,它提供了最佳的稳定性估计的平流-扩散方程中的速度场是Sobolev正则的空间变量的设置。这个估计公式的帮助下,Kantorovich-Rubinstein距离与对数费用函数。其次,将稳定性估计推广到速度场为$L^1$函数的奇异积分的平流-扩散方程,得到了一个新的适定性结果。

英文摘要:

This paper contains two main contributions. First, it provides optimal stability estimates for advection-diffusion equations in a setting in which the velocity field is Sobolev regular in the spatial variable. This estimate is formulated with the help of Kantorovich--Rubinstein distances with logarithmic cost functions. Second, the stability estimates are extended to the advection-diffusion equations with velocity fields whose gradients are singular integrals of $L^1$ functions entailing a new well-posedness result.

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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