Wasserstein-Łojasiewicz inequalities and asymptotics of McKean-Vlasov equation

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Main Authors: Choi, Beomjun, Jeong, Seunghoon, Seo, Geuntaek
Format: Preprint
Published: 2025
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author Choi, Beomjun
Jeong, Seunghoon
Seo, Geuntaek
author_facet Choi, Beomjun
Jeong, Seunghoon
Seo, Geuntaek
contents We prove convergence to equilibrium for solutions to the McKean-Vlasov (granular media) equation on the flat torus in a genuinely nonconvex setting. Our approach is based on a Wasserstein-Łojasiewicz gradient inequality for the associated free energy, established under mild analyticity assumptions on the confinement and interaction potentials. This yields convergence of the corresponding Wasserstein gradient flow without convexity assumption and without postulating log-Sobolev related functional inequalities. We expect this strategy to extend to more general nonconvex Wasserstein gradient flows. In the present work we develop it in the McKean-Vlasov setting, with the Keller-Segel chemotaxis model on the torus as a prominent application.
format Preprint
id arxiv_https___arxiv_org_abs_2511_23361
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Wasserstein-Łojasiewicz inequalities and asymptotics of McKean-Vlasov equation
Choi, Beomjun
Jeong, Seunghoon
Seo, Geuntaek
Analysis of PDEs
Probability
35K55, 35B40, 49Q22, 68T07
We prove convergence to equilibrium for solutions to the McKean-Vlasov (granular media) equation on the flat torus in a genuinely nonconvex setting. Our approach is based on a Wasserstein-Łojasiewicz gradient inequality for the associated free energy, established under mild analyticity assumptions on the confinement and interaction potentials. This yields convergence of the corresponding Wasserstein gradient flow without convexity assumption and without postulating log-Sobolev related functional inequalities. We expect this strategy to extend to more general nonconvex Wasserstein gradient flows. In the present work we develop it in the McKean-Vlasov setting, with the Keller-Segel chemotaxis model on the torus as a prominent application.
title Wasserstein-Łojasiewicz inequalities and asymptotics of McKean-Vlasov equation
topic Analysis of PDEs
Probability
35K55, 35B40, 49Q22, 68T07
url https://arxiv.org/abs/2511.23361