On shape optimization problems involving the fractional laplacian
Anne-Laure Dalibard, David Gérard-Varet (2013)
ESAIM: Control, Optimisation and Calculus of Variations
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Our concern is the computation of optimal shapes in problems involving (−). We focus on the energy (Ω) associated to the solution of the basic Dirichlet problem ( − ) = 1 in Ω, = 0 in Ω. We show that regular minimizers Ω of this energy under a volume constraint are disks. Our proof goes through the explicit computation of the shape derivative (that seems to be completely new in the fractional context), and a refined adaptation of the...