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In this paper we consider the problem of minimizing the relative perimeter under a volume constraint in the interior of a convex body, i.e., a compact convex set in Euclidean space with interior points. We shall not impose any regularity…

Metric Geometry · Mathematics 2013-06-05 Manuel Ritoré , Efstratios Vernadakis

For a convex curve in an even-dimensional affine space we introduce a series of convex domains (called Young hulls), describe their structure and give a formulas fo the volume of the biggest of these domains. This paper is an attempt to…

dg-ga · Mathematics 2008-02-03 V. Sedykh , B. Shapiro

We overview the volume calculations for polyhedra in Euclidean, spherical and hyperbolic spaces. We prove the Sforza formula for the volume of an arbitrary tetrahedron in $H^3$ and $S^3$. We also present some results, which provide a…

Metric Geometry · Mathematics 2013-02-28 Nikolay Abrosimov , Alexander Mednykh

We give an example of a bounded, pseudoconvex, circular domain in ${\mathbb C}^3$ with smooth, real-analytic boundary and non-compact automorphism group, which is not biholomorphically equivalent to any Reinhardt domain.

Complex Variables · Mathematics 2009-09-25 Siqi Fu , Alexander V. Isaev , Steven G. Krantz

We present in this paper a \boundary version" for theorems about minimality of volume and energy functionals on a spherical domain of threedimensional Euclidean sphere.

Differential Geometry · Mathematics 2011-01-28 Fabiano G. B. Brito , André Gomes , Giovanni S. Nunes

We show that a locally symmetric space of noncompact type and with finite volume is quasi-isometric to the euclidean cone over a finite simplicial complex. A detailed analysis of metric properties yields a proof of a conjecture of Siegel.

Differential Geometry · Mathematics 2007-05-23 E. Leuzinger

Let $\mathcal{B}$ be a compact convex planar domain with smooth boundary of finite type and $\mathcal{B}_\theta$ its rotation by an angle $\theta$. We prove that for almost every $\theta\in[0, 2\pi]$ the remainder…

Number Theory · Mathematics 2011-06-02 Jingwei Guo

A covering problem posed by Henri Lebesgue in 1914 seeks to find the convex shape of smallest area that contains a subset congruent to any point set of unit diameter in the Euclidean plane. Methods used previously to construct such a…

Metric Geometry · Mathematics 2018-10-25 Philip Gibbs

In this work we bring together tools and ideology from two different fields, Symplectic Geometry and Asymptotic Geometric Analysis, to arrive at some new results. Our main result is a dimension-independent bound for the symplectic capacity…

Symplectic Geometry · Mathematics 2007-05-23 Shiri Artstein-Avidan , Vitali D. Milman , Yaron Ostrover

In this paper, we study the symplectic volume of the moduli space of polygons by using Witten's formula. We propose to use this volume as a measure for the flexibility of a polygon with fixed side-lengths. The main result of our is that…

Symplectic Geometry · Mathematics 2016-09-07 Vu The Khoi

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

The isoperimetric problem asks for the maximum area of a region of given perimeter. It is natural to consider other measurements of a region, such as the diameter and width, and ask for the extreme value of one when another is fixed. The…

Metric Geometry · Mathematics 2022-02-22 Gábor Fejes Tóth

We give, in dimensions three or greater, an example of a bounded, pseudoconvex, circular domain in complex space with smooth real analytic boundary and non-compact automorphism group which is not biholomorphically equivalent to any…

Complex Variables · Mathematics 2009-09-25 Siqi Fu , A. V. Isaev , Steven G. Krantz

A new intrinsic volume metric is introduced for the class of convex bodies in $\mathbb{R}^n$. As an application, an inequality is proved for the asymptotic best approximation of the Euclidean unit ball by arbitrarily positioned polytopes…

Metric Geometry · Mathematics 2023-03-15 Florian Besau , Steven Hoehner

This note initiates an investigation of packing links into a region of Euclidean space to achieve a maximal density subject to geometric constraints. The upper bounds obtained apply only to the class of homotopically essential links and…

Geometric Topology · Mathematics 2024-01-31 Michael H. Freedman

In this paper, we prove a rigidity theorem for smooth strictly convex domains in Euclidean spaces.

Differential Geometry · Mathematics 2023-03-22 Jinmin Wang , Zhizhang Xie

This paper is aimed at presenting a systematic survey of the existing now different formulations for the problem of projection of the origin of the Euclidean space onto the convex polyhedron (PPOCP). In the present paper, there are…

Optimization and Control · Mathematics 2018-02-15 Z. R. Gabidullina

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

In a Riemannian manifold a regular convex domain is said to be $\lambda$-convex if its normal curvature at each point is greater than or equal to $\lambda$. In a Hadamard manifold, the asymptotic behaviour of the quotient…

Differential Geometry · Mathematics 2013-03-21 J. Abardia , E. Gallego

In this paper the excluded volume of binary similar hyperparticles with small size difference in D-dimensional Euclidean spaces R2, R3, and R4 is studied using two different statistical geometry approaches. These geometric approaches,…

Soft Condensed Matter · Physics 2026-02-20 H. J. H. Brouwers