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There are at least two directions concerning the extension of classical sharp Hardy-Littlewood-Sobolev inequality: (1) Extending the sharp inequality on general manifolds; (2) Extending it for the negative exponent $\lambda=n-\alpha$ (that…

偏微分方程分析 · 数学 2013-09-11 Jingbo Dou , Meijun Zhu

The inequality of Berwald is a reverse-H\"older 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…

度量几何 · 数学 2025-06-04 Dylan Langharst , Eli Putterman

A sharp quantitative version of the $L_p-$mixed volume inequality is established. This is achieved by exploiting an improved Jensen inequality. This inequality is a generalization of Pinsker-Csisz\'ar-Kullback inequality for the Tsallis…

泛函分析 · 数学 2015-06-16 Van Hoang Nguyen

In this paper we present new versions of the classical Brunn-Minkowski inequality for different classes of measures and sets. We show that the inequality \[ \mu(\lambda A + (1-\lambda)B)^{1/n} \geq \lambda \mu(A)^{1/n} +…

概率论 · 数学 2015-07-10 Galyna Livshyts , Arnaud Marsiglietti , Piotr Nayar , Artem Zvavitch

A $\lambda$-convex body in a three-dimensional space form $M^3(c)$ of constant curvature $c$ is a compact convex set $K$ whose boundary $\partial K$ has normal curvatures bounded below by a constant $\lambda>0$ (in a weak sense). Within…

微分几何 · 数学 2026-03-10 Kostiantyn Drach , Gil Solanes , Kateryna Tatarko

Two consequences of the stability version of the one dimensional Pr\'ekopa-Leindler inequality are presented. One is the stability version of the Blaschke-Santal\'o inequality, and the other is a stability version of the Pr\'ekopa-Leindler…

度量几何 · 数学 2009-09-22 Károly J. Böröczky , Keith M. Ball

In this article we study two classical problems in convex geometry associated to $\mathcal{A}$-harmonic PDEs, quasi-linear elliptic PDEs whose structure is modeled on the $p$-Laplace equation. Let $p$ be fixed with $2\leq n\leq p<\infty$.…

偏微分方程分析 · 数学 2018-10-10 Murat Akman , John Lewis , Olli Saari , Andrew Vogel

Let $M^n$ be either a simply connected space form or a rank-one symmetric space of noncompact type. We consider Weingarten hypersurfaces of $M\times\mathbb R$, which are those whose principal curvatures $k_1,\dots ,k_n$ and angle function…

微分几何 · 数学 2022-12-09 Ronaldo F. de Lima , Álvaro K. Ramos , João P. dos Santos

We show uniqueness results for the anisotropic Calder\'{o}n problem stated on transversally anisotropic manifolds. Moreover, we give a convexity result for the range of Dirichlet-to-Neumann maps on general Riemannian manifolds near the zero…

偏微分方程分析 · 数学 2023-06-13 Cătălin I. Cârstea , Ali Feizmohammadi , Lauri Oksanen

This article describes a new proof of the equality condition for the Brunn-Minkowski inequality.

度量几何 · 数学 2010-05-11 Daniel A. Klain

We prove the existence and uniqueness up to translations of the solution to a Minkowski type problem for the torsional rigidity in the class of open bounded convex subsets of the $n$-dimensional Euclidean space. For the existence part we…

偏微分方程分析 · 数学 2008-09-29 A. Colesanti , M. Fimiani

We obtain convolution inequalities in Lebesgue and Lorentz spaces with power weights when the functions involved are assumed to be radially symmetric. We also present applications of these results to inequalities for Riesz potentials of…

经典分析与常微分方程 · 数学 2013-08-01 Pablo L. De Nápoli , Irene Drelichman

A new proof of the Wulff-Gage isoperimetric inequality for origin-symmetric convex bodies is provided. As its applications, we prove the uniqueness of log-Minkowski problem and a new proof of the log-Minkowski inequality of curvature…

度量几何 · 数学 2023-11-30 Lei Ma , Chunna Zeng

Let $M_n$ denote a random symmetric $n$ by $n$ matrix, whose upper diagonal entries are iid Bernoulli random variables (which take value -1 and 1 with probability 1/2). Improving the earlier result by Costello, Tao and Vu, we show that…

组合数学 · 数学 2019-12-19 Hoi H. Nguyen

We prove an inequality of Bonnesen type for the real projective plane, generalizing Pu's systolic inequality for positively-curved metrics. The remainder term in the inequality, analogous to that in Bonnesen's inequality, is a function of…

度量几何 · 数学 2021-03-05 Mikhail G. Katz , Stephane Sabourau

The Santal\'o point of a convex polytope is the interior point which leads to a polar dual of minimal volume. This minimization problem is relevant in interior point methods for convex optimization, where the logarithm of the dual volume is…

代数几何 · 数学 2024-11-26 Dmitrii Pavlov , Simon Telen

In this survey, we consider the sharp Sobolev inequality in convex cones. We also prove it by using the optimal transport technique. Then we present some results related to the Euler-Lagrange equation of the Sobolev inequality: the…

偏微分方程分析 · 数学 2022-09-28 Alberto Roncoroni

This paper presents connections between Gromov's work on isoperimetry of waists and Milman's work on the $M$-ellipsoid of a convex body. It is proven that any convex body $K \subseteq \mathbb{R}^n$ has a linear image $\tilde{K} \subseteq…

度量几何 · 数学 2017-01-16 Bo'az Klartag

We interpret the log-Brunn-Minkowski conjecture of B\"or\"oczky-Lutwak-Yang-Zhang as a spectral problem in centro-affine differential geometry. In particular, we show that the Hilbert-Brunn-Minkowski operator coincides with the…

泛函分析 · 数学 2023-03-02 Emanuel Milman

We establish several inequalities for manifolds with positive scalar curvature and, more generally, for the scalar curvature bounded from below, in the spirit of the classical bound on the distances between conjugates points in surfaces…

微分几何 · 数学 2018-10-30 Misha Gromov