Stability of Ellipsoids as the Energy Minimizers of Perturbed Coulomb Energies.
SIAM J. Math. Anal.(2023)
摘要
In this paper we characterize the minimizer for a class of nonlocal perturbations of the Coulomb energy. We show that the minimizer is the normalized characteristic function of an ellipsoid, under the assumption that the perturbation kernel has the same homogeneity as the Coulomb potential, is even, is smooth off the origin, and is sufficiently small. This result can be seen as the stability of ellipsoids as energy minimizers, since the minimizer of the Coulomb energy is the normalized characteristic function of a ball.
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关键词
ellipsoids,energy minimizers,stability
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