Abstract

Dans cet article, nous proposons une approche des inegalites de transport-entropie fondee sur la minimisation de certaines fonctionnelles definies sur l’espace des mesures de probabilite. Cette approche nous permet en particulier de donner une nouvelle preuve d’un resultat d’Otto et Villani (J. Funct. Anal. 173 (2000) 361–400) montrant que l’inegalite de Sobolev logarithmique entraine l’inegalite de transport de Talagrand.

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