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Various Alexandrov-Fenchel type inequalities have appeared and played important roles in convex geometry, matrix theory and complex algebraic geometry. It has been noticed for some time that they share some striking analogies and have…

微分几何 · 数学 2024-09-06 Ping Li

In this paper, the results of Mei, Wang, Weng and Xia [Math. Z., 2025, MR4911815] on capillary convex bodies are extended to the anisotropic setting. We develop a theory for anisotropic capillary convex bodies in the half-space and…

微分几何 · 数学 2025-07-08 Jinyu Gao , Guanghan Li

Intersection bodies represent a remarkable class of geometric objects associated with sections of star bodies and invoking Radon transforms, generalized cosine transforms, and the relevant Fourier analysis. The main focus of this article is…

泛函分析 · 数学 2007-05-23 Boris Rubin

This paper combines the post-Minkowskian expansion of general relativity with the language of intersection theory. Because of the nature of the soft limit inherent to the post-Minkowskian expansion, the intersection-based approach is of…

广义相对论与量子宇宙学 · 物理学 2024-09-04 Hjalte Frellesvig , Toni Teschke

In a seminal paper "Volumen und Oberfl\"ache" (1903), Minkowski introduced the basic notion of mixed volumes and the corresponding inequalities that lie at the heart of convex geometry. The fundamental importance of characterizing the…

度量几何 · 数学 2023-09-18 Yair Shenfeld , Ramon van Handel

Recently, Gardner, Hug and Weil have introduced the Orlicz-Brunn-Minkowski theory: a general framework, additions, and inequalities. Following this, in the paper we consider Orlicz dual Brunn-Minkowski theory. We introduce Orlicz hormonic…

综合数学 · 数学 2021-08-18 Chang-Jian Zhao

We present a simple proof of Christer Borell's general inequality in the Brunn-Minkowski theory. We then discuss applications of Borell's inequality to the log-Brunn-Minkowski inequality of B\"or\"oczky, Lutwak, Yang and Zhang.

泛函分析 · 数学 2015-12-15 Arnaud Marsiglietti

To the families of geometric measures of convex bodies (the area measures of Aleksandrov-Fenchel-Jessen, the curvature measures of Federer, and the recently discovered dual curvature measures) a new family is added. The new family of…

度量几何 · 数学 2025-02-13 Erwin Lutwak , Dongmeng Xi , Deane Yang , Gaoyong Zhang

In this paper, we study the $L_p$ dual Minkowski problem for all $q, p \in \mathbb{R}$ from an algebraic perspective. We establish the existence of solutions for group-invariant convex bodies (not necessarily origin-symmetric), thereby…

度量几何 · 数学 2025-11-18 Junjie Shan

We give the structure of discrete two-dimensional finite sets $A,\,B\subseteq \R^2$ which are extremal for the recently obtained inequality $|A+B|\ge (\frac{|A|}{m}+\frac{|B|}{n}-1)(m+n-1)$, where $m$ and $n$ are the minimum number of…

数论 · 数学 2013-11-19 G. A. Freiman , D. Grynkiewicz , O. Serra , Y. V. Stanchescu

The projector onto the Minkowski sum of closed convex sets is generally not equal to the sum of individual projectors. In this work, we provide a complete answer to the question of characterizing the instances where such an equality holds.…

最优化与控制 · 数学 2018-09-17 Heinz H. Bauschke , Minh N. Bui , Xianfu Wang

In this paper, the concept of the classical $f$-divergence for a pair of measures is extended to the mixed $f$-divergence for multiple pairs of measures. The mixed $f$-divergence provides a way to measure the difference between multiple…

概率论 · 数学 2016-06-29 Elisabeth M. Werner , Deping Ye

For a set $A$ of points in the plane, not all collinear, we denote by ${\rm tr}(A)$ the number of triangles in any triangulation of $A$; that is, ${\rm tr}(A) = 2i+b-2$ where $b$ and $i$ are the numbers of points of $A$ in the boundary and…

In this work, a generalization of Chebyshev functional is presented. New inequalities of Gruss type via Pompeiu's mean value theorem are established. Improvements of some old inequalities are proved. A generalization of pre-Gruss inequality…

经典分析与常微分方程 · 数学 2019-05-24 Mohammad W. Alomari

We obtain inequalities of H\"{o}lder and Minkowski type with weights generalizing both the case of weights with alternating signs and the classical case of non-negative weights.

经典分析与常微分方程 · 数学 2015-06-10 Petr Chunaev , Ljiljanka Kvesić , Josip Pečarić

We obtain new inequalities with alternating signs of H\"{o}lder and Minkowski type.

经典分析与常微分方程 · 数学 2015-06-10 Petr Chunaev

Three new combinations of convex bodies are introduced and studied: the $L_p$ fiber, $L_p$ chord and graph combinations. These combinations are defined in terms of the fibers and graphs of pairs of convex bodies, and each operation…

度量几何 · 数学 2025-09-10 Steven Hoehner , Sudan Xing

New Orlicz Brunn-Minkowski inequalities are established for rigid motion compatible Minkowski valuations of arbitrary degree. These extend classical log-concavity properties of intrinsic volumes and generalize seminal results of Lutwak and…

度量几何 · 数学 2014-12-01 Astrid Berg , Lukas Parapatits , Franz E. Schuster , Manuel Weberndorfer

In this paper we explore questions regarding the Minkowski sum of the boundaries of convex sets. Motivated by a question suggested to us by V.~Milman regarding the volume of $\partial K+ \partial T$ where $K$ and $T$ are convex bodies, we…

度量几何 · 数学 2024-07-30 Shiri Artstein-Avidan , Tomer Falah , Boaz A. Slomka

We consider the existence and uniqueness of a minimizer of the extremal problem for weighted combined energy between two concentric annuli and obtain that the extremal mapping is a certain radial mapping. Meanwhile, this in turn implies a…

复变函数 · 数学 2024-01-19 Xiaogao Feng , Ruyue Tang , Ting Peng