On some rescaled shape optimization problems

Details On some rescaled shape optimization problems On some rescaled shape optimization problems

2009-11-24

arxiv.org/abs/0911.4561v1

Mathematics

Optimization and Control

18 pages

Scientific paper

We consider Cheeger-like shape optimization problems of the form $$\min\big\{|\Omega|^\alpha J(\Omega) : \Omega\subset D\big\}$$ where $D$ is a given bounded domain and $\alpha$ is above the natural scaling. We show the existence of a solution and analyze as $J(\Omega)$ the particular cases of the compliance functional $C(\Omega)$ and of the first eigenvalue $\lambda_1(\Omega)$ of the Dirichlet Laplacian. We prove that optimal sets are open and we obtain some necessary conditions of optimality.

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