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arXiv 1501.04437math.AP
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Poisson-Nernst-Planck方程的Wasserstein梯度流方法

A Wasserstein gradient flow approach to Poisson-Nernst-Planck equations

David Kinderlehrer, Léonard Monsaingeon, Xiang Xu

摘要:

用于模拟离子输运的Poisson-Nernst-Planck方程组被解释为Wasserstein距离的梯度流和具有有限二阶矩的概率测度空间中的自由能。变分方案,然后成立,是在一个统一的框架内的线性和非线性扩散的情况下的全局弱解的建设的起点。证明的主要结果依赖于推导额外的估计的基础上开发的流交换技术的Matthes,McCann和Savaré。

英文摘要:

The Poisson-Nernst-Planck system of equations used to model ionic transport is interpreted as a gradient flow for the Wasserstein distance and a free energy in the space of probability measures with finite second moment. A variational scheme is then set up and is the starting point of the construction of global weak solutions in a unified framework for the cases of both linear and nonlinear diffusion. The proof of the main results relies on the derivation of extra estimates based on the flow interchange technique developed by Matthes, McCann, and Savaré.

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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