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Carleman estimates for the heat equation with discontinuous diffusion coefficients

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We consider the heat equation with a diffusion coefficient that is discontinuous at an interface. We give global Carleman estimates for solutions of this equation, even if the jump of the coefficient across the interface has not a constant sign.
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Keywords: Carleman estimates; discontinuous coefficients; heat equation

Document Type: Research Article

Affiliations: Laboratoire d'analyse, topologie, probabilites, CNRS UMR 6632 Universite de Provence, Marseille, France

Publication date: 2008-10-01

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