Published Paper

Inserted: 19 jul 2013
Last Updated: 18 jul 2014

Journal: SIAM J. Math. Anal.
Volume: 46
Number: 4
Pages: 2310–2349
Year: 2014
Doi: 10.1137/130929898

Abstract:

We consider a nonlocal isoperimetric problem defined in the whole space ${\mathbb R}^N$, whose nonlocal part is given by a Riesz potential with exponent $\alpha\in(0,N - 1)$. We show that critical configurations with positive second variation are local minimizers and satisfy a quantitative inequality with respect to the $L^1$-norm. This criterion provides the existence of a (explicitly determined) critical threshold determining the interval of volumes for which the ball is a local minimizer, and allows to address several global minimality issues.

Keywords: Local minimizers, second variation, global minimizers, nonlocal isoperimetri problem, minimality conditions

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