English

On cross-diffusion systemsfor two populations subject to a common congestion effect

Analysis of PDEs 2019-03-05 v2

Abstract

In this paper, we investigate the existence of solution for systems of Fokker-Planck equations coupled through a common nonlinear congestion. Two different kinds of congestion are considered: a porous media congestion or \textit{soft} congestion and the \textit{hard} congestion given by the constraint ρ1+ρ21\rho_1+\rho_2 \leqslant 1. We show that these systems can be seen as gradient flows in a Wasserstein product space and then we obtain a constructive method to prove the existence of solutions. Therefore it is natural to apply it for numerical purposes and some numerical simulations are included.

Keywords

Cite

@article{arxiv.1709.09109,
  title  = {On cross-diffusion systemsfor two populations subject to a common congestion effect},
  author = {Maxime Laborde},
  journal= {arXiv preprint arXiv:1709.09109},
  year   = {2019}
}
R2 v1 2026-06-22T21:55:33.706Z