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math.AP2023
Face 2-phase: how much overdetermination is enough to get symmetry in two-phase problems
Lorenzo Cavallina, Giorgio Poggesi
We provide a full characterization of multi-phase problems under a large class of overdetermined Serrin-type conditions. Our analysis includes both symmetry and asymmetry (includin…
math.AP2023
Symmetry and asymmetry in a multi-phase overdetermined problem
Lorenzo Cavallina
A celebrated theorem of Serrin asserts that one overdetermined condition on the boundary is enough to obtain radial symmetry in the so-called one-phase overdetermined torsion probl…