Hamilton--Jacobi equations for controlled gradient flows: the comparison principle

Fuente: arXiv
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Autores principales: Conforti, Giovanni, Kraaij, Richard, Tonon, Daniela
Formato: Preprint
Publicado: 2021
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author Conforti, Giovanni
Kraaij, Richard
Tonon, Daniela
author_facet Conforti, Giovanni
Kraaij, Richard
Tonon, Daniela
contents Motivated by recent developments in the fields of large deviations for interacting particle system and mean field control, we establish a comparison principle for the Hamilton--Jacobi equation corresponding to linearly controlled gradient flows of an energy function $\cE$ defined on a metric space $(E,d)$. Our analysis is based on a systematic use of the regularizing properties of gradient flows in evolutional variational inequality (EVI) formulation, that we exploit for constructing rigorous upper and lower bounds for the formal Hamiltonian at hand and, in combination with the use of the Tataru's distance, for establishing the key estimates needed to bound the difference of the Hamiltonians in the proof of the comparison principle. Our abstract results apply to a large class of examples only partially covered by the existing theory, including gradient flows on Hilbert spaces and the Wasserstein space equipped with a displacement convex energy functional $\cE$ satisfying McCann's condition.
format Preprint
id arxiv_https___arxiv_org_abs_2111_13258
institution arXiv
publishDate 2021
record_format arxiv
spellingShingle Hamilton--Jacobi equations for controlled gradient flows: the comparison principle
Conforti, Giovanni
Kraaij, Richard
Tonon, Daniela
Analysis of PDEs
Probability
35F21, 49L25, 49Q22, 49Q20, 93E20
Motivated by recent developments in the fields of large deviations for interacting particle system and mean field control, we establish a comparison principle for the Hamilton--Jacobi equation corresponding to linearly controlled gradient flows of an energy function $\cE$ defined on a metric space $(E,d)$. Our analysis is based on a systematic use of the regularizing properties of gradient flows in evolutional variational inequality (EVI) formulation, that we exploit for constructing rigorous upper and lower bounds for the formal Hamiltonian at hand and, in combination with the use of the Tataru's distance, for establishing the key estimates needed to bound the difference of the Hamiltonians in the proof of the comparison principle. Our abstract results apply to a large class of examples only partially covered by the existing theory, including gradient flows on Hilbert spaces and the Wasserstein space equipped with a displacement convex energy functional $\cE$ satisfying McCann's condition.
title Hamilton--Jacobi equations for controlled gradient flows: the comparison principle
topic Analysis of PDEs
Probability
35F21, 49L25, 49Q22, 49Q20, 93E20
url https://arxiv.org/abs/2111.13258