Click Here to Download: https://ouo.io/BNxsMn Existence and Regularity Results for Some Shape Optimization Problems By: Bozhidar Velichkov Publisher: Edizioni della Normale Print ISBN: 9788876425264, 8876425268 eText ISBN: 9788876425271, 8876425276 Copyright year: 2015 Format: PDF Available from $ 24.99 USD SKU 9788876425271 We study the existence and regularity of optimal domains for functionals depending on the spectrum of the Dirichlet Laplacian or of more general Schrödinger operators. The domains are subject to perimeter and volume constraints; we also take into account the possible presence of geometric obstacles. We investigate the properties of the optimal sets and of the optimal state functions. In particular, we prove that the eigenfunctions are Lipschitz continuous up to the boundary and that the optimal sets subject to the perimeter constraint have regular free boundary. We also consider spectral optimization problems in non-Euclidean settings and optimization problems for potentials and measures, as well as multiphase and optimal partition problems.