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We develop a reverse entropy power inequality for convex measures, which may be seen as an affine-geometric inverse of the entropy power inequality of Shannon and Stam. The specialization of this inequality to log-concave measures may be…

泛函分析 · 数学 2012-04-02 Sergey Bobkov , Mokshay Madiman

This work is concerned with a P\'olya-Szeg\"o type inequality for anisotropic functionals of Sobolev functions. The relevant inequality entails a double-symmetrization involving both trial functions and functionals. A new approach that…

泛函分析 · 数学 2025-01-03 Gabriele Bianchi , Andrea Cianchi , Paolo Gronchi

In this paper, we are interested in Gaussian versions of the classical Brunn-Minkowski inequality. We prove in a streamlined way a semigroup version of the Ehrard inequality for $m$ Borel or convex sets based on a previous work by Borell.…

概率论 · 数学 2009-07-09 Franck Barthe , Nolwen Huet

In this work we prove a Brunn-Minkowski-type inequality in the context of symplectic geometry and discuss some of its applications.

辛几何 · 数学 2007-12-27 Shiri Artstein-Avidan , Yaron Ostrover

In recent years, it has been shown that some classical inequalities follow from a local stochastic dominance for naturally associated random polytopes. We strengthen planar isoperimetric inequalities by attaching a stochastic model to some…

泛函分析 · 数学 2021-09-27 Jesus Rebollo Bueno

It is shown that each monotone Minkowski endomorphism of convex bodies gives rise to an isoperimetric inequality which directly implies the classical Urysohn inequality. Among this large family of new inequalities, the only affine invariant…

度量几何 · 数学 2021-06-14 Georg C. Hofstätter , Franz E. Schuster

The Blaschke Santal\'o inequality and the $L_p$ affine isoperimetric inequalities are major inequalities in convex geometry and they have a wide range of applications. Functional versions of the Blaschke Santal\'o inequality have been…

泛函分析 · 数学 2016-06-29 Elisabeth M. Werner , Umut Caglar

General results on convex bodies are reviewed and used to derive an exact closed-form parametric formula for the Minkowski sum boundary of $m$ arbitrary ellipsoids in $N$-dimensional Euclidean space. Expressions for the principal curvatures…

度量几何 · 数学 2021-03-30 Gregory S. Chirikjian , Bernard Shiffman

In this paper, we present a simple proof of a recent result of the second author which establishes that functional inverse-Santal{\'o} inequalities follow from Entropy-Transport inequalities. Then, using transport arguments together with…

泛函分析 · 数学 2021-09-10 Matthieu Fradelizi , Nathael Gozlan , Simon Zugmeyer

The entropy power inequality, which plays a fundamental role in information theory and probability, may be seen as an analogue of the Brunn-Minkowski inequality. Motivated by this connection to Convex Geometry, we survey various recent…

信息论 · 计算机科学 2020-02-07 Mokshay Madiman , James Melbourne , Peng Xu

B\"or\"oczky, Lutwak, Yang and Zhang recently proved the log-Brunn-Minkowski inequality which is stronger than the classical Brunn-Minkowski inequality for two origin-symmetric convex bodies in the plane. This paper establishes the…

微分几何 · 数学 2018-10-16 Yunlong Yang , Deyan Zhang

In this paper, we obtain the reversed Hardy-Littlewood-Sobolev inequality with vertical weights on the upper half space and discuss the extremal functions. We show that the sharp constants in this inequality are attained by introducing a…

偏微分方程分析 · 数学 2023-11-08 Jingbo Dou , Yunyun Hu , Jingjing Ma

We establish new geometric inequalities comparing the volumes of sections and projections of a convex body, whose barycenter or Santal\'o point is at the origin, with those of its inner and outer regularizations. We also provide functional…

度量几何 · 数学 2025-11-06 Natalia Tziotziou

A stability version of the reverse isoperimetric inequality, and the corresponding inequality for isotropic measures are established.

度量几何 · 数学 2015-01-13 Karoly J. Boroczky , Daniel Hug

The paper is devoted to the study of Gromov-Hausdorff convergence and stability of irreversible metric-measure spaces, both in the compact and noncompact cases. While the compact setting is mostly similar to the reversible case developed by…

微分几何 · 数学 2021-06-28 Alexandru Kristály , Wei Zhao

A stability version of the Blaschke-Santal\'o inequality and the affine isoperimetric inequality for convex bodies of dimension n>2 is proved. The first step is the reduction to the case when the convex body is o-symmetric and has axial…

度量几何 · 数学 2009-01-22 Károly J. Böröczky

The Ehrhard-Borell inequality is a far-reaching refinement of the classical Brunn-Minkowski inequality that captures the sharp convexity and isoperimetric properties of Gaussian measures. Unlike in the classical Brunn-Minkowski theory, the…

概率论 · 数学 2018-06-22 Yair Shenfeld , Ramon van Handel

By studying $L^p$-combinations of strongly isomorphic polytopes, we prove the equivalence of the $L^p$-Brunn-Minkowski inequality conjectured by B\"or\"oczky, Lutwak, Yang and Zhang to the local version of the inequality studied by…

微分几何 · 数学 2019-10-16 Eli Putterman

We prove that if $K$ is a symmetric and isotropic convex body in $\mathbb{R}^n$, then $$\int_K\langle x,u\rangle^2\,dx\int_{K^\circ}\langle x,u\rangle^2\,dx\leq \left(\int_{B_2^n}\langle x,u\rangle^2\,dx\right)^2,\qquad\forall…

度量几何 · 数学 2026-05-26 Károly J. Böröczky , Konstantinos Patsalos , Christos Saroglou

We survey some interplays between spectral estimates of H\"ormander-type, degenerate Monge-Amp\`ere equations and geometric inequalities related to log-concavity such as Brunn-Minkowski, Santal\'o or Busemann inequalities.

泛函分析 · 数学 2011-09-19 Dario Cordero-Erausquin , Bo'az Klartag
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