article

Title: On the extremals of the Polya-Szego inequality

Authors: Almut Burchard and Adele Ferone

Issue: Volume 64 (2015), Issue 5, 1447-1463

Abstract:

$The distance of an extremal of the P\'olya-Szeg\H o inequality from a translate of its symmetric decreasing rearrangement is controlled by the measure of the set of critical points.$