Calculus of Variations and Geometric Measure Theory
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A. Figalli - F. Maggi - C. Mooney

The sharp quantitative Euclidean concentration inequality

created by maggi on 16 Jan 2016
modified by figalli on 09 Apr 2018

[BibTeX]

Accepted Paper

Inserted: 16 jan 2016
Last Updated: 9 apr 2018

Journal: Camb. J. Math.
Year: 2018

Abstract:

The Euclidean concentration inequality states that, among sets with fixed volume, balls have r-neighborhoods of minimal volume for every r > 0. On an arbitrary set, the deviation of this volume growth from that of a ball is shown to control the square of the volume of the symmetric difference between the set and a ball. This sharp result is strictly related to the physically significant problem of understanding near maximizers in the Riesz rearrangement inequality with a strictly decreasing radially decreasing kernel. Moreover, it implies as a particular case the sharp quantitative Euclidean isoperimetric inequality proved by Fusco, Maggi and Pratelli.


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