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Insensitizing controls for a semilinear heat equation with a superlinear nonlinearity

✍ Scribed by Olivier Bodart; Manuel González-Burgos; Rosario Pérez-García


Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
73 KB
Volume
335
Category
Article
ISSN
1631-073X

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✦ Synopsis


This Note is concerned with the existence of insensitizing controls for a semilinear heat equation when we consider nonlinearities that behave superlinearly at infinity. We prove the existence of a control insensitizing the L 2 -norm of the observation of the solution in an open subset O of the considered domain under appropriate assumptions on the nonlinear term f (y) and the second member ξ of the equation. The proof uses global Carleman estimates, parabolic regularity and a fixed point argument. To cite this article: O. Bodart et al., C. R. Acad. Sci. Paris, Ser. I 335 (2002) 677-682.  2002 Académie des sciences/Éditions scientifiques et médicales Elsevier SAS

Contrôles insensibilisants pour une équation de la chaleur semi-linéaire avec non-linéarité superlinéaire

Résumé

Dans cette Note, on étudie l'existence de contrôles insensibilisants pour une équation de la chaleur semi-linéaire, avec des non-linéarités superlinéaires à l'infini. On démontre l'existence de contrôles insensibilisant la norme L 2 de la solution observée dans un ouvert O inclus dans le domaine considéré, sous des hypothèses convenables sur la nonlinéarité et le second membre de l'équation. La démonstration fait appel à des inégalités de Carleman globales, la régularisation parabolique et un argument de point fixe. Pour citer cet article : O.


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