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Regularity of optimal shapes for the Dirichlet's energy with volume constraint

Published online by Cambridge University Press:  15 February 2004

Tanguy Briancon*
Affiliation:
Université Rennes 1. Antenne de Bretagne de l'École Normale Supérieure de Cachan; briancon@bretagne.ens-cachan.fr.
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Abstract

In this paper, we prove someregularity results for the boundary of an open subset of $\xR^d$ whichminimizes the Dirichlet's energy among all open subsets withprescribed volume. In particular we show that, whenthe volume constraint is “saturated”,the reduced boundary of the optimal shape (and even the wholeboundary in dimension 2)is regular if the state function is nonnegative.

Type
Research Article
Copyright
© EDP Sciences, SMAI, 2004

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