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In this paper we prove different functional inequalities extending the classical Rogers-Shephard inequalities for convex bodies. The original inequalities provide an optimal relation between the volume of a convex body and the volume of…

The Rogers-Shephard and Zhang's projection inequalities are two reverse, affine isoperimetric-type inequalities for convex bodies. Following a classical work by Schneider, both inequalities have been extended to the so-called $m$th-order…

度量几何 · 数学 2025-11-06 Dylan Langharst , Francisco Marín Sola , Jacopo Ulivelli

In this note we study the Petty projection of a log-concave function, which has been recently introduced in [9]. Moreover, we present some new inequalities involving this new notion, partly complementing and correcting some results from…

泛函分析 · 数学 2023-05-29 Leticia Alves da Silva , Bernardo González Merino , Rafael Villa

We investigate geometric and functional inequalities for the class of log-concave probability sequences. We prove dilation inequalities for log-concave probability measures on the integers. A functional analogue of this geometric inequality…

概率论 · 数学 2023-06-19 Arnaud Marsiglietti , James Melbourne

We prove new entropy inequalities for log concave and s-concave functions that strengthen and generalize recently established reverse log Sobolev and Poincare inequalities for such functions. This leads naturally to the concept of…

泛函分析 · 数学 2013-07-23 Umut Caglar , Elisabeth M. Werner

We will prove a reverse Rogers-Shephard inequality for log-concave functions. In some particular cases, the method used for general log-concave functions can be slightly improved, allowing us to prove volume estimates for polars of…

度量几何 · 数学 2017-05-18 David Alonso-Gutiérrez

In this note prove the following Berwald-type inequality, showing that for any integrable log-concave function $f:\mathbb R^n\rightarrow[0,\infty)$ and any concave function $h:L\rightarrow\mathbb [0,\infty)$, where $L$ is the epigraph of…

泛函分析 · 数学 2019-08-06 David Alonso-Gutiérrez , Julio Bernués , Bernardo González Merino

We extend the notion of John's ellipsoid to the setting of integrable log-concave functions. This will allow us to define the integral ratio of a log-concave function, which will extend the notion of volume ratio, and we will find the…

For a real-valued non-negative and log-concave function we introduce a notion of difference function; the difference function represents a functional analog on the difference body of a convex body. We prove a sharp inequality which bounds…

度量几何 · 数学 2007-05-23 Andrea Colesanti

We introduce floating bodies for convex, not necessarily bounded subsets of $\mathbb{R}^n$. This allows us to define floating functions for convex and log concave functions and log concave measures. We establish the asymptotic behavior of…

泛函分析 · 数学 2018-08-07 Ben Li , Carsten Schuett , Elisabeth M. Werner

In this paper we further develop the theory of f-divergences for log-concave functions and their related inequalities. We establish Pinsker inequalities and new affine invariant entropy inequalities. We obtain new inequalities on functional…

微分几何 · 数学 2020-05-15 Umut Caglar , Alexander V. Kolesnikov , Elisabeth M. Werner

In this paper, we introduce the notion of log-{\varphi}-convex functions and present some properties and representation of such functions. We obtain some results of the Hermite Hadamard inequalities for product log-{\varphi}-convex…

泛函分析 · 数学 2012-03-27 Mehmet Zeki Sarikaya

This is a continuation of our previous work 0712.4092. It is well known that various isoperimetric inequalities imply their functional ``counterparts'', but in general this is not an equivalence. We show that under certain convexity…

泛函分析 · 数学 2014-02-26 Emanuel Milman

In this paper, we obtain some new inequalities for functions whose second derivatives' absolute value is s-convex and log-convex. Also, we give some applications for numerical integration.

经典分析与常微分方程 · 数学 2014-09-04 Ahmet Ocak Akdemir , Merve Avci Ardic , M. Emin Özdemir

We give a functional version of the affine isoperimetric inequality for log-concave functions which may be interpreted as an inverse form of a logarithmic Sobolev inequality inequality for entropy. A linearization of this inequality gives…

泛函分析 · 数学 2011-10-26 S. Artstein-Avidan , B. Klartag , C. Schuett , E. Werner

Eigenvalues inequalities involving (log) convex/concav functions and Hermitian matrices, positive unital maps are considered. Simple proofs of Bhatia-Kittaneh inequality and Naimark dilation theorem are given.

算子代数 · 数学 2007-05-23 Jaspal Singh Aujla Jean-Christophe Bourin

This article belongs to the area of geometric tomography, which is the study of geometric properties of solids based on data about their sections and projections. We describe a new direction in geometric tomography where different…

泛函分析 · 数学 2023-02-10 Apostolos Giannopoulos , Alexander Koldobsky , Artem Zvavitch

Zhang's reverse affine isoperimetric inequality states that among all convex bodies $K\subseteq\mathbb{R}^n$, the affine invariant quantity $|K|^{n-1}|\Pi^*(K)|$ (where $\Pi^*(K)$ denotes the polar projection body of $K$) is minimized if…

泛函分析 · 数学 2018-10-18 David Alonso-Gutiérrez , Julio Bernués , Bernardo González Merino

Bi-log-concavity of probability measures is a univariate extension of the notion of log-concavity that has been recently proposed in a statistical literature. Among other things, it has the nice property from a modelisation perspective to…

概率论 · 数学 2019-03-20 Adrien Saumard

Building on work of Furstenberg and Tzkoni, we introduce ${\bf r}$-flag affine quermassintegrals and their dual versions. These quantities generalize affine and dual affine quermassintegrals as averages on flag manifolds (where the…

度量几何 · 数学 2025-02-19 Susanna Dann , Grigoris Paouris , Peter Pivovarov
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