Quantitative sensitivity analysis for Fokker-Planck equation with respect to the Wasserstein distance

Fuente: arXiv
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Autor principal: Morange, Martin
Formato: Preprint
Publicado: 2026
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author Morange, Martin
author_facet Morange, Martin
contents We analyze the sensitivity of solutions to the Fokker-Planck equation with respect to some unknown parameter. Our main result is to provide quantitative upper bounds for the $p$-Wasserstein distance $\mathcal{W}_p$ between two solutions with different parameters, for every $p \geq 2$. We are able to give two proofs of this result, the first relying on synchronous coupling between two solutions of an SDE, and another one that relies on the differentiation of Kantorovitch dual formulation of optimal transport. We also provide more specific bounds in the case of the overdamped Langevin process, for which we are able to compare convergence to the invariant measure and sensitivity to the parameter.
format Preprint
id arxiv_https___arxiv_org_abs_2602_03174
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Quantitative sensitivity analysis for Fokker-Planck equation with respect to the Wasserstein distance
Morange, Martin
Analysis of PDEs
We analyze the sensitivity of solutions to the Fokker-Planck equation with respect to some unknown parameter. Our main result is to provide quantitative upper bounds for the $p$-Wasserstein distance $\mathcal{W}_p$ between two solutions with different parameters, for every $p \geq 2$. We are able to give two proofs of this result, the first relying on synchronous coupling between two solutions of an SDE, and another one that relies on the differentiation of Kantorovitch dual formulation of optimal transport. We also provide more specific bounds in the case of the overdamped Langevin process, for which we are able to compare convergence to the invariant measure and sensitivity to the parameter.
title Quantitative sensitivity analysis for Fokker-Planck equation with respect to the Wasserstein distance
topic Analysis of PDEs
url https://arxiv.org/abs/2602.03174