On the extremals of the P\'olya-Szego inequality
Abstract
The distance of an extremal of the P\'olya-Szego inequality from a translate of its symmetric decreasing rearrangement is controlled by the measure of the set of critical points.
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The distance of an extremal of the P\'olya-Szego inequality from a translate of its symmetric decreasing rearrangement is controlled by the measure of the set of critical points.