
Estimates of First and Second Order Shape Derivatives in Nonsmooth Multidimensional Domains and Applications
Lamboley, Jimmy; Novruzi, Arian; Pierre, Michel (2016), Estimates of First and Second Order Shape Derivatives in Nonsmooth Multidimensional Domains and Applications, Journal of Functional Analysis, 270, 7, p. 2616-2652. 10.1016/j.jfa.2016.02.013
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Type
Article accepté pour publication ou publiéDate
2016Nom de la revue
Journal of Functional AnalysisVolume
270Numéro
7Éditeur
Academic Press
Pages
2616-2652
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In this paper we investigate continuity properties of first and second order shape derivatives of functionals depending on second order elliptic PDE's around nonsmooth domains, essentially either Lipschitz or convex, or satisfying a uniform exterior ball condition. We prove rather sharp continuity results for these shape derivatives with respect to Sobolev norms of the boundary-traces of the displacements. With respect to previous results of this kind, the approach is quite different and is valid in any dimension $N\geq 2$. It is based on sharp regularity results for Poisson-type equations in such nonsmooth domains. We also enlarge the class of functionals and PDEs for which these estimates apply. Applications are given to qualitative properties of shape optimization problems under convexity constraints for the variable domains or their complement.Mots-clés
shape optimization; optimality conditions; convexity constraint; Shape derivative; Sobolev estimates; regularity; energy functionalPublications associées
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Lamboley, Jimmy; Pierre, Michel; Novruzi, Arian (2012) Article accepté pour publication ou publié
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