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We use Brunn-Minkowski inequalities for quermassintegrals to deduce a family of inequalities of Poincar\'e type on the unit sphere and on the boundary of smooth convex bodies in the $n$-dimensional Euclidean space.

泛函分析 · 数学 2008-04-25 Andrea Colesanti , Eugenia Saorin-Gomez

Lutwak's notion of affine quermassintegrals of a convex body quickly became of great importance in convex and affine geometry and more recently, also in asymptotic geometric analysis. In this note we introduce the notion of Orlicz mixed…

度量几何 · 数学 2018-09-27 Nikos Dafnis

In this paper we establish Minkowski inequality and Brunn--Minkowski inequality for $p$-quermassintegral differences of convex bodies. Further, we give Minkowski inequality and Brunn--Minkowski inequality for quermassintegral differences of…

度量几何 · 数学 2007-05-23 Zhao Changjian , Wingsum Cheung

It is shown that each continuous even Minkowski valuation on convex bodies of degree $1 \leq i \leq n - 1$ intertwining rigid motions is obtained from convolution of the $i$th projection function with a unique spherical Crofton…

度量几何 · 数学 2024-11-01 Georg C. Hofstätter , Philipp Kniefacz , Franz E. Schuster

The aim of this paper is twofold. In the first part we focus on a functional involving a weighted curvature integral and the quermassintegrals. We prove upper and lower bounds for this functional in the class of convex sets, which provide a…

偏微分方程分析 · 数学 2025-04-04 Domenico Angelo La Manna , Rossano Sannipoli

In this paper, the functional Quermassintegrals of log-concave functions in $\mathbb R^n$ are discussed, we obtain the integral expression of the $i$-th functional mixed Quermassintegrals, which are similar to the integral expression of the…

度量几何 · 数学 2020-09-28 Fangwei Chen , Jianbo Fang , Miao Luo , Congli Yang

In this paper, we explore the concept of $\sigma$-quasiconvexity for functions defined on normed vector spaces. This notion encompasses two important and well-established concepts: quasiconvexity and strong quasiconvexity. We start by…

最优化与控制 · 数学 2024-11-12 Nguyen Mau Nam , Jacob Sharkansky

In this paper, we first derive a quantitative quermassintegral inequality for nearly spherical sets in $\mathbb{H}^{n+1}$ and $\mathbb{S}^{n+1}$, which is a generalization of the quantitative Alexandrov-Fenchel inequality proved in…

微分几何 · 数学 2023-06-30 Rong Zhou , Tailong Zhou

In this paper, we provide an affirmative answer to [16, Conjecture 1.5] on the Alexandrov-Fenchel inequality for quermassintegrals for convex capillary hypersurfaces in the Euclidean half-space. More generally, we establish a theory for…

度量几何 · 数学 2025-05-27 Xinqun Mei , Guofang Wang , Liangjun Weng , Chao Xia

This is a continuation of our previous work 0712.4092. It is well known that various isoperimetric inequalities imply their functional ``counterparts'', but in general this is not an equivalence. We show that under certain convexity…

泛函分析 · 数学 2014-02-26 Emanuel Milman

A new version of the Hadwiger theorem on convex functions is established and an explicit representation of functional intrinsic volumes is found using new functional Cauchy-Kubota formulas. In addition, connections between functional…

泛函分析 · 数学 2025-07-28 Andrea Colesanti , Monika Ludwig , Fabian Mussnig

A complete classification of continuous, dually epi-translation invariant, and rotation equivariant valuations on convex functions is established. This characterizes the recently introduced functional Minkowski vectors, which naturally…

度量几何 · 数学 2025-04-24 Mohamed A. Mouamine , Fabian Mussnig

In this paper we first introduce quermassintegrals for free boundary hypersurfaces in the $(n+1)$-dimensional Euclidean unit ball. Then we solve some related isoperimetric type problems for convex free boundary hypersurfaces, which lead to…

微分几何 · 数学 2022-03-01 Julian Scheuer , Guofang Wang , Chao Xia

We extend the classical Aleksandrov-Fenchel inequality for mixed volumes to functionals arising naturally in hermitian integral geometry. As a consequence, we obtain Brunn-Minkowski and isoperimetric inequalities for hermitian…

微分几何 · 数学 2014-04-14 Judit Abardia , Thomas Wannerer

In this paper we introduce the notion of a quasi-modular and we prove that the respective Minkowski functional of the unit quasi-modular ball becomes a quasi-norm. In this way, we refer to and complete the well-known theory related to the…

泛函分析 · 数学 2022-08-19 Paweł Foralewski , Henryk Hudzik , Paweł Kolwicz

We provide general estimates which compare the quermassintegrals of a convex body $K$ in ${\mathbb R}^n$ with the averages of the corresponding quermassintegrals of the $k$-codimensional sections of $K$ over $G_{n,n-k}$. An example is the…

度量几何 · 数学 2023-02-23 Dimitris-Marios Liakopoulos

We present a probabilistic interpretation of several functional isoperimetric inequalities within the class of $p$-concave functions, building on random models for such functions introduced by P. Pivovarov and J. Rebollo-Bueno. First, we…

泛函分析 · 数学 2026-04-15 Francisco Marín Sola

This paper establishes two new geometric inequalities in the dual Brunn-Minkowski theory. The first, originally conjectured by Lutwak, is the Brunn-Minkowski inequality for dual quermassintegrals of origin-symmetric convex bodies. The…

度量几何 · 数学 2025-05-30 Shay Sadovsky , Gaoyong Zhang

Mixed volumes, which are the polarization of volume with respect to the Minkowski addition, are fundamental objects in convexity. In this note we announce the construction of mixed integrals, which are functional analogs of mixed volumes.…

泛函分析 · 数学 2013-02-05 Vitali Milman , Liran Rotem

In this paper, we solve various isoperimetric problems for the quermassintegrals and the curvature integrals in the hyperbolic space $\H^n$, by using quermassintegral preserving curvature flows. As a byproduct, we obtain hyperbolic…

微分几何 · 数学 2017-05-30 Guofang Wang , Chao Xia
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