Stochastic proof of the sharp symmetrized Talagrand inequality

A new proof of the sharp symmetrized form of Talagrand’s transport-entropy inequality is given. Compared to stochastic proofs of other Gaussian functional inequalities, the new idea here is a certain coupling induced by time-reversed martingale representations.

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Main Authors: Courtade, Thomas A., Fathi, Max, Mikulincer, Dan
Format: Article
Language:English
Published: Académie des sciences 2024-11-01
Series:Comptes Rendus. Mathématique
Subjects:
Online Access:https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.681/
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author Courtade, Thomas A.
Fathi, Max
Mikulincer, Dan
author_facet Courtade, Thomas A.
Fathi, Max
Mikulincer, Dan
author_sort Courtade, Thomas A.
collection DOAJ
description A new proof of the sharp symmetrized form of Talagrand’s transport-entropy inequality is given. Compared to stochastic proofs of other Gaussian functional inequalities, the new idea here is a certain coupling induced by time-reversed martingale representations.
format Article
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institution Kabale University
issn 1778-3569
language English
publishDate 2024-11-01
publisher Académie des sciences
record_format Article
series Comptes Rendus. Mathématique
spelling doaj-art-e71adfc4869f40378b658dee5539ba7f2025-02-07T11:26:37ZengAcadémie des sciencesComptes Rendus. Mathématique1778-35692024-11-01362G121779178410.5802/crmath.68110.5802/crmath.681Stochastic proof of the sharp symmetrized Talagrand inequalityCourtade, Thomas A.0Fathi, Max1Mikulincer, Dan2Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720 USADMA, École normale supérieure, Université PSL, CNRS, 75005 Paris, France; Institut Universitaire de France; Université Paris Cité and Sorbonne Université, CNRS, Laboratoire Jacques-Louis Lions and Laboratoire de Probabilités, Statistique et Modélisation, F-75013 Paris, FranceDepartment of Mathematics, MIT, Cambridge, MA 02139 USAA new proof of the sharp symmetrized form of Talagrand’s transport-entropy inequality is given. Compared to stochastic proofs of other Gaussian functional inequalities, the new idea here is a certain coupling induced by time-reversed martingale representations.https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.681/Transport inequalitiesGaussian inequalitiesBlaschke–Santaló inequalityMartingale representations
spellingShingle Courtade, Thomas A.
Fathi, Max
Mikulincer, Dan
Stochastic proof of the sharp symmetrized Talagrand inequality
Comptes Rendus. Mathématique
Transport inequalities
Gaussian inequalities
Blaschke–Santaló inequality
Martingale representations
title Stochastic proof of the sharp symmetrized Talagrand inequality
title_full Stochastic proof of the sharp symmetrized Talagrand inequality
title_fullStr Stochastic proof of the sharp symmetrized Talagrand inequality
title_full_unstemmed Stochastic proof of the sharp symmetrized Talagrand inequality
title_short Stochastic proof of the sharp symmetrized Talagrand inequality
title_sort stochastic proof of the sharp symmetrized talagrand inequality
topic Transport inequalities
Gaussian inequalities
Blaschke–Santaló inequality
Martingale representations
url https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.681/
work_keys_str_mv AT courtadethomasa stochasticproofofthesharpsymmetrizedtalagrandinequality
AT fathimax stochasticproofofthesharpsymmetrizedtalagrandinequality
AT mikulincerdan stochasticproofofthesharpsymmetrizedtalagrandinequality