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Title of Journal: Arch Rational Mech Anal

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Abbravation: Archive for Rational Mechanics and Analysis

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Springer Berlin Heidelberg

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10.1007/bf01883629

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1432-0673

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Displacement Convexity and Minimal Fronts at Phase

Authors: E A Carlen M C Carvalho R Esposito J L Lebowitz R Marra
Publish Date: 2008/11/12
Volume: 194, Issue: 3, Pages: 823-847
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Abstract

We show that certain free energy functionals that are not convex with respect to the usual convex structure on their domain of definition are strictly convex in the sense of displacement convexity under a natural change of variablesWe use this to show that in certain cases the only critical points of these functionals are minimizers This approach based on displacement convexity permits us to treat multicomponent systems as well as single component systems The developments produce new examples of displacement convex functionals and in the multicomponent setting jointly displacement convex functionals


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