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The conic support measures localize the conic intrinsic volumes of closed convex cones in the same way as the support measures of convex bodies localize the intrinsic volumes of convex bodies. In this note, we extend the `Master Steiner…

度量几何 · 数学 2018-07-11 Rolf Schneider

Let A be a bounded subset of IR^d. We give an upper bound on the volume of the symmetric difference of A and f(A) where f is a translation, a rotation, or the composition of both, a rigid motion. The volume is measured by the d-dimensional…

度量几何 · 数学 2010-10-13 Daria Schymura

Computing mixed volume of convex polytopes is an important problem in computational algebraic geometry. This paper establishes sufficient conditions under which the mixed volume of several convex polytopes exactly equals the normalized…

代数几何 · 数学 2019-02-21 Tianran Chen

In this paper we study the class of so called `ball-bodies' in ${\mathbb R}^n$, given by intersections of translates of Euclidean unit balls (or, equivalently, summand of the Euclidean ball). We study the class along with the natural…

度量几何 · 数学 2025-05-20 Shiri Artstein-Avidan , Dan I. Florentin

In this note, we derive an asymptotically sharp upper bound on the number of lattice points in terms of the volume of centrally symmetric convex bodies. Our main tool is a generalization of a result of Davenport that bounds the number of…

度量几何 · 数学 2013-10-25 Matthias Henze

In this article, we use the second intrinsic volume to define a metric on the space of homothetic classes of Gaussian bounded convex bodies in a separable real Hilbert space. Using kernels of hyperbolic type, we can deduce that this space…

度量几何 · 数学 2024-09-27 Yusen Long

A direct approach to Ball's simplex inequality is presented. This approach, which does not use the Brascamp-Lieb inequality, also gives Barthe's characterization of the simplex for Ball's inequality and extends it from discrete to arbitrary…

度量几何 · 数学 2007-05-23 Erwin Lutwak , Deane Yang , Gaoyong Zhang

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…

度量几何 · 数学 2013-06-05 Manuel Ritoré , Efstratios Vernadakis

The symmetric convex hull of random points that are independent and distributed according to the cone probability measure on the $\ell_p$-unit sphere of $\mathbb R^n$ for some $1\leq p < \infty$ is considered. We prove that these random…

泛函分析 · 数学 2017-03-14 Julia Hörrmann , Joscha Prochno , Christoph Thaele

We explore analogs of classical centro-affine invariant isoperimetric inequalities, such as the Blaschke--Santal\'o inequality and the $L_p$-affine isoperimetric inequalities, for convex bodies in spherical space. Specifically, we establish…

度量几何 · 数学 2024-11-05 Florian Besau , Elisabeth M. Werner

High proved the following theorem. If the intersections of any two congruent copies of a plane convex body are centrally symmetric, then this body is a circle. In our paper we extend the theorem of High to the sphere and the hyperbolic…

度量几何 · 数学 2024-07-19 J. Jerónimo-Castro , E. Makai

Short and transparent proofs of central limit theorems for intrinsic volumes of random polytopes in smooth convex bodies are presented. They combine different tools such as estimates for floating bodies with Stein's method from probability…

度量几何 · 数学 2017-11-06 Christoph Thaele , Nicola Turchi , Florian Wespi

In this paper we characterize the trace spaces of a class of weighted function spaces of intersection type with mixed regularities. To a large extent we can overcome the difficulty of mixed scales by employing a microscopic improvement in…

泛函分析 · 数学 2014-04-01 Martin Meyries , Mark Veraar

Macdonald studied a discrete volume measure for a rational polytope $P$, called solid angle sum, that gives a natural discrete volume for $P$. We give a local formula for the codimension two quasi-coefficient of the solid angle sum of $P$.…

组合数学 · 数学 2022-01-04 Fabrício Caluza Machado , Sinai Robins

Intrinsic volumes are fundamental geometric invariants generalizing volume, surface area, and mean width for convex bodies. We establish a unified Laplace-Grassmannian representation for intrinsic and dual volumes of convex polynomial…

度量几何 · 数学 2025-11-04 Trí Minh Lê , Khai-Hoan Nguyen-Dang

In this article, we investigate electrostatic systems with a nonzero cosmological constant on compact manifolds with boundary. We establish new geometric properties for electrostatic manifolds in higher dimensions, extending previous…

微分几何 · 数学 2026-01-16 Allan Freitas , Benedito Leandro , Ernani Ribeiro , Guilherme Sabo

We consider the two-body problem on surfaces of constant non-zero curvature and classify the relative equilibria and their stability. On the hyperbolic plane, for each q>0 we show there are two relative equilibria where the masses are…

数学物理 · 物理学 2018-06-27 A. V. Borisov , L. C. García-Naranjo , I. S. Mamaev , J. Montaldi

We establish a general formula for the enclosed volume of constant mean curvature (CMC) surfaces in Euclidean three space with translational periods forming a lattice. The formula relates the volume to the surface area, a…

微分几何 · 数学 2026-01-22 Lynn Heller , Sebastian Heller , Martin Traizet

The isotropic constant $L_K$ is an affine-invariant measure of the spread of a convex body $K$. For a $d$-dimensional convex body $K$, $L_K$ can be defined by $L_K^{2d} = \det(A(K))/(\mathrm{vol}(K))^2$, where $A(K)$ is the covariance…

泛函分析 · 数学 2015-12-09 Luis Rademacher

We prove that every indefinite quadratic form with non-negative integer coefficients is the volume polynomial of a pair of lattice polygons. This solves the discrete version of the Heine-Shephard problem for two bodies in the plane. As an…

代数几何 · 数学 2024-10-16 Ivan Soprunov , Jenya Soprunova