Stability of ellipsoids as the energy minimisers of perturbed Coulomb energies

Autor: Mateu, Joan, Mora, Maria Giovanna, Rondi, Luca, Scardia, Lucia, Verdera, Joan
Rok vydání: 2021
Předmět:
Druh dokumentu: Working Paper
Popis: In this paper we characterise the minimiser for a class of nonlocal perturbations of the Coulomb energy. We show that the minimiser is the normalised characteristic function of an ellipsoid, under the assumption that the perturbation kernel has the same homogeneity as the Coulomb potential, is even, smooth off the origin and sufficiently small. This result can be seen as the stability of ellipsoids as energy minimisers, since the minimiser of the Coulomb energy is the normalised characteristic function of a ball.
Databáze: arXiv