Pathwise quantitative particle approximation of nonlinear stochastic Fokker-Planck equations via relative entropy

Fuente: arXiv
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Main Authors: Olivera, Christian, de Souza, Alexandre B.
Format: Preprint
Published: 2025
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author Olivera, Christian
de Souza, Alexandre B.
author_facet Olivera, Christian
de Souza, Alexandre B.
contents We derive non-linear stochastic Fokker-Planck equation from stochastic systems particles with individual and environmental noise via relative entropy method, with pathwise quantitative bounds. Moreover, we prove the existence of a unique strong solution to the associated Fokker-Planck equation. Our proof is based on tools from PDE analysis, stochastic analysis, functional inequalities, and also we use the dissipation of entropy which provides some bound on the Fisher information of the particle system. The approach applies to repulsive and attractive kernels.
format Preprint
id arxiv_https___arxiv_org_abs_2506_06777
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Pathwise quantitative particle approximation of nonlinear stochastic Fokker-Planck equations via relative entropy
Olivera, Christian
de Souza, Alexandre B.
Probability
We derive non-linear stochastic Fokker-Planck equation from stochastic systems particles with individual and environmental noise via relative entropy method, with pathwise quantitative bounds. Moreover, we prove the existence of a unique strong solution to the associated Fokker-Planck equation. Our proof is based on tools from PDE analysis, stochastic analysis, functional inequalities, and also we use the dissipation of entropy which provides some bound on the Fisher information of the particle system. The approach applies to repulsive and attractive kernels.
title Pathwise quantitative particle approximation of nonlinear stochastic Fokker-Planck equations via relative entropy
topic Probability
url https://arxiv.org/abs/2506.06777