A variational approach to regularity theory in optimal transportation
Author(s) -
Michaël Goldman
Publication year - 2019
Publication title -
séminaire laurent schwartz — edp et applications
Language(s) - English
Resource type - Journals
ISSN - 2266-0607
DOI - 10.5802/slsedp.132
Subject(s) - linearization , poisson's equation , mathematics , matching (statistics) , poisson distribution , identity (music) , mathematical economics , mathematical optimization , calculus (dental) , mathematical analysis , nonlinear system , physics , statistics , medicine , dentistry , quantum mechanics , acoustics
This paper describes recent results obtained in collaboration with M. Huesmann and F. Otto on the regularity of optimal transport maps. The main result is a quantitative version of the well-known fact that the linearization of the Monge-Amp{e}re equation around the identity is the Poisson equation. We present two applications of this result. The first one is a variational proof of the partial regularity theorem of Figalli and Kim and the second is the rigorous validation of some predictions made by Carraciolo and al. on the structure of the optimal transport maps in matching problems.
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