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Related papers: The Blaschke-Santalo Inequality

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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…

Functional Analysis · Mathematics 2016-09-14 David Alonso-Gutiérrez , Bernardo González Merino , C. Hugo Jiménez , Rafael Villa

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…

Metric Geometry · Mathematics 2025-11-06 Natalia Tziotziou

Ehrhart's conjecture proposes a sharp upper bound on the volume of a convex body whose barycenter is its only interior lattice point. Recently, Berman and Berndtsson proved this conjecture for a class of rational polytopes including…

Combinatorics · Mathematics 2013-02-19 Benjamin Nill , Andreas Paffenholz

In this paper, we prove a family of identities for closed and strictly convex hypersurfaces in the sphere and hyperbolic/de Sitter space. As applications, we prove Blaschke-Santal\'o type inequalities in the sphere and hyperbolic/de Sitter…

Differential Geometry · Mathematics 2025-10-08 Yingxiang Hu , Haizhong Li

In this note we link symplectic and convex geometry by relating two seemingly different open conjectures: a symplectic isoperimetric-type inequality for convex domains, and Mahler's conjecture on the volume product of centrally symmetric…

Metric Geometry · Mathematics 2015-01-14 Shiri Artstein-Avidan , Roman Karasev , Yaron Ostrover

In this paper we deal with the problem to find the maximal volume polyhedra with a prescribed property and inscribed in the unit sphere. We generalize those inequality (called by \emph{icosahedron inequality}) of L. Fejes-T\'oth of which an…

Metric Geometry · Mathematics 2014-11-24 Ákos G. Horváth

We study inequalities that simultaneously relate the number of lattice points, the volume and the successive minima of a convex body to one another. One main ingredient in order to establish these relations is Blaschke's shaking procedure,…

Metric Geometry · Mathematics 2022-05-16 Ansgar Freyer , Eduardo Lucas

The Euclidean concentration inequality states that, among sets with fixed volume, balls have $r$-neighborhoods of minimal volume for every $r>0$. On an arbitrary set, the deviation of this volume growth from that of a ball is shown to…

Analysis of PDEs · Mathematics 2016-08-11 Alessio Figalli , Francesco Maggi , Connor Mooney

We obtain a new extension of Rogers-Shephard inequality providing an upper bound for the volume of the sum of two convex bodies $K$ and $L$. We also give lower bounds for the volume of the $k$-th limiting convolution body of two convex…

Metric Geometry · Mathematics 2013-12-23 David Alonso-Gutiérrez , Bernardo González , Carlos Hugo Jiménez

We prove a randomized version of the generalized Urysohn inequality relating mean-width to the other intrinsic volumes. To do this, we introduce a stochastic approximation procedure that sees each convex body K as the limit of intersections…

Metric Geometry · Mathematics 2016-06-30 Grigoris Paouris , Peter Pivovarov

We prove a fourth order analogue of the Saint-Venant inequality: the mean deflection of a clamped plate under uniform transverse load is maximal for the ball, among plates of prescribed volume in any dimension of space. The method works in…

Analysis of PDEs · Mathematics 2025-01-28 Mark Ashbaugh , Dorin Bucur , Richard S. Laugesen , Roméo Leylekian

In this paper, we prove Mahler's conjecture concerning the volume product of centrally symmetric convex bodies in $\mathbb{R}^n$ in the case where $n=3$. Furthermore, we determine the equality condition.

Metric Geometry · Mathematics 2020-12-16 Hiroshi Iriyeh , Masataka Shibata

H. Guggenheimer generalized the planar volume product problem for locally convex curves $C$ enclosing the origin $k \ge 2$ times. He conjectured that the minimal volume product $V(C)V(C^*)$ for these curves is attained if the curve consists…

Metric Geometry · Mathematics 2019-05-29 K. J. Böröczky , E. Makai

We establish estimates for the asymptotic best approximation of the Euclidean unit ball by polytopes under a notion of distance induced by the intrinsic volumes. We also introduce a notion of distance between convex bodies that is induced…

Metric Geometry · Mathematics 2020-03-02 Florian Besau , Steven Hoehner , Gil Kur

If $K\subset\mathbb{R}^n$ is a convex body and $\Gamma_pK$ is the $p$-centroid body of $K$, the $L_p$ Busemann-Petty centroid inequality states that $\vol(\Gamma_pK) \geq \vol(K)$, with equality if and only if $K$ is an ellipsoid centered…

Functional Analysis · Mathematics 2025-03-14 Julian Haddad , Carlos Hugo Jimenez , Leticia Alves da Silva

Gr\"unbaum's inequality gives sharp bounds between the volume of a convex body and its part cut off by a hyperplane through the centroid of the body. We provide a generalization of this inequality for hyperplanes that do not necessarily…

Metric Geometry · Mathematics 2024-10-11 Brayden Letwin , Vladyslav Yaskin

We revisit an ingenious argument of K. Ball to provide sharp estimates for the volume of sections of a convex body in John's position. Our technique combines the geometric Brascamp-Lieb inequality with a generalised Parseval-type identity.…

Metric Geometry · Mathematics 2026-03-31 David Alonso-Gutiérrez , Silouanos Brazitikos , Giorgos Chasapis

The goal of this paper is to study geometric and extremal properties of the convex body $B_{\mathcal F(M)}$, which is the unit ball of the Lipschitz-free Banach space associated with a finite metric space $M$. We investigate $\ell_1$ and…

Metric Geometry · Mathematics 2020-04-16 Matthew Alexander , Matthieu Fradelizi , Luis C. García-Lirola , Artem Zvavitch

We study Blaschke-Santal\'o diagrams associated to the torsional rigidity and the first eigenvalue of the Laplacian with Dirichlet boundary conditions. We work under convexity and volume constraints, in both strong (volume exactly one) and…

Optimization and Control · Mathematics 2021-05-12 Ilaria Lucardesi , Davide Zucco

At the heart of convex geometry lies the observation that the volume of convex bodies behaves as a polynomial. Many geometric inequalities may be expressed in terms of the coefficients of this polynomial, called mixed volumes. Among the…

Metric Geometry · Mathematics 2023-09-18 Yair Shenfeld , Ramon van Handel