Weighted Berwald's Inequality

Fuente: arXiv
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Autori principali: Langharst, Dylan, Putterman, Eli
Natura: Preprint
Pubblicazione: 2022
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author Langharst, Dylan
Putterman, Eli
author_facet Langharst, Dylan
Putterman, Eli
contents The inequality of Berwald is a reverse-Hölder like inequality for the $p$th average, $p\in (-1,\infty),$ of a non-negative, concave function over a convex body in $\mathbb{R}^n.$ We prove Berwald's inequality for averages of functions with respect to measures that have some concavity conditions, e.g. $s$-concave measures, $s\in \mathbb{R}.$ We also obtain equality conditions; in particular, this provides a new proof for the equality conditions of the classical inequality of Berwald. As applications, we generalize a number of classical bounds for the measure of the intersection of a convex body with a half-space and also the concept of radial means bodies and the projection body of a convex body.
format Preprint
id arxiv_https___arxiv_org_abs_2210_04438
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Weighted Berwald's Inequality
Langharst, Dylan
Putterman, Eli
Metric Geometry
Functional Analysis
52A39, 52A41 (Primary), 28A75 (Secondary)
The inequality of Berwald is a reverse-Hölder like inequality for the $p$th average, $p\in (-1,\infty),$ of a non-negative, concave function over a convex body in $\mathbb{R}^n.$ We prove Berwald's inequality for averages of functions with respect to measures that have some concavity conditions, e.g. $s$-concave measures, $s\in \mathbb{R}.$ We also obtain equality conditions; in particular, this provides a new proof for the equality conditions of the classical inequality of Berwald. As applications, we generalize a number of classical bounds for the measure of the intersection of a convex body with a half-space and also the concept of radial means bodies and the projection body of a convex body.
title Weighted Berwald's Inequality
topic Metric Geometry
Functional Analysis
52A39, 52A41 (Primary), 28A75 (Secondary)
url https://arxiv.org/abs/2210.04438