Shape Optimization Problems for Metric Graphs

Giuseppe Buttazzo (1) , Berardo Ruffini (2) , Bozhidar Velichkov (2)

1 Dipartimento di Matematica [Pisa]
2 SNS - Scuola Normale Superiore di Pisa

We consider the shape optimization problem min{E(Γ) : Γ∈A, H^1(Γ)=l }, where H^1 is the one-dimensional Hausdorff measure and A is an admissible class of one-dimensional sets connecting some prescribed set of points D={D_1,...,D_k}⊂Rd. The cost functional E(Γ) is the Dirichlet energy of Γ defined through the Sobolev functions on Γ vanishing on the points D_i. We analyze the existence of a solution in both the families of connected sets and of metric graphs. At the end, several explicit examples are discussed.

Domaines: Equations aux dérivées partielles [math.AP]

Giuseppe Buttazzo, Berardo Ruffini, Bozhidar Velichkov. Shape Optimization Problems for Metric Graphs. 2014. ⟨hal-00941094⟩