Special Session 149: Recent developments in Free Boundary Problems and Nonlinear PDEs

Spectral partition problems for the divergence operator with volume and inclusion constraints
Makson Santos
University of Lisbon
Portugal
Co-Author(s):    P\^{e}dra Andrade, Dario Mazzoleni, Ederson Moreira dos Santos, Hugo tavares
Abstract:
We study the existence and regularity of optimal partitions for a problem with volume and inclusion constraints driven by the divergence operator. In particular, we prove that an optimal partition is connected and the eigenfunction associated with each set is locally Lipschitz continuous, which implies that the optimal sets are at least open sets. We show that there is a variational formulation to our problem that does not involve subsets, only functions, and we prove the desired properties for the minimizer.