Document Type

Article

Publication Date

2017

DOI

10.1051/cocv/2015043

Publication Title

ESAIM: Control Optimisation and Calculus of Variations

Volume

23

Issue

1

Pages

137-164

Abstract

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 non-linear diffusion. The proof of the main results relies on the derivation of additional estimates based on the flow interchange technique developed by Matthes et al. in [D. Matthes, R.J. McCann and G. Savare, Commun. Partial Differ. Equ. 34 (2009) 1352-1397].

Original Publication Citation

Kinderlehrer, D., Monsaingeon, L., & Xu, X. (2017). A Wasserstein gradient flow approach to Poisson-Nernst-Planck equations. ESAIM: Control Optimisation and Calculus of Variations, 23(1), 137-164. doi:10.1051/cocv/2015043

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