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An optimal matching problem

Published online by Cambridge University Press:  15 December 2004

Ivar Ekeland*
Affiliation:
University of British Columbia, Vancouver BC, V6T 1Z2  Canada. ekeland@math.ubc.ca
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Abstract

Given two measured spaces $(X,\mu)$ and $(Y,\nu)$ , and a third space Z,given two functions u(x,z) and v(x,z), we study the problem of finding twomaps $s:X\rightarrow Z$ and $t:Y\rightarrow Z$ such that the images $s(\mu)$ and $t(\nu)$ coincide, and the integral $\int_{X}u(x,s(x))d\mu-\int_{Y}v(y,t(y))d\nu$ is maximal. We give condition on u and v for whichthere is a unique solution.

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Type
Research Article
Copyright
© EDP Sciences, SMAI, 2005

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