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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…

Metric Geometry · Mathematics 2024-11-01 Georg C. Hofstätter , Philipp Kniefacz , Franz E. Schuster

Analogues of the classical inequalities from the Brunn-Minkowski theory for rotation intertwining additive maps of convex bodies are developed. Analogues are also proved of inequalities from the dual Brunn-Minkowski theory for intertwining…

Metric Geometry · Mathematics 2012-08-01 Franz E. Schuster

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…

Metric Geometry · Mathematics 2018-09-27 Nikos Dafnis

The affine quermassintegrals associated to a convex body in $\mathbb{R}^n$ are affine-invariant analogues of the classical intrinsic volumes from the Brunn-Minkowski theory, and thus constitute a central pillar of affine convex geometry.…

Metric Geometry · Mathematics 2022-08-22 Emanuel Milman , Amir Yehudayoff

A quantitative version of Minkowski sum, extending the definition of $\theta$-convolution of convex bodies, is studied to obtain extensions of the Brunn-Minkowski and Zhang inequalities, as well as, other interesting properties on Convex…

Functional Analysis · Mathematics 2013-02-12 David Alonso-Gutierrez , C. Hugo Jimenez , Rafael Villa

In this paper, we first introduce a new concept of {\it dual quermassintegral sum function} of two star bodies and establish Minkowski's type inequality for dual quermassintegral sum of mixed intersection bodies, which is a general form of…

Metric Geometry · Mathematics 2007-05-23 Zhao Chang-jian , Leng Gang-song

The celebrated Petty's projection inequality is a sharp upper bound for the volume of the polar projection body of a convex body. Lutwak introduced the concept of mixed projection bodies and extended Petty's projection inequality.…

Functional Analysis · Mathematics 2026-01-06 Dylan Langharst

The general volume of a star body, a notion that includes the usual volume, the $q$th dual volumes, and many previous types of dual mixed volumes, is introduced. A corresponding new general dual Orlicz curvature measure is defined that…

Metric Geometry · Mathematics 2018-03-06 Richard J. Gardner , Daniel Hug , Wolfgang Weil , Sudan Xing , Deping Ye

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…

Metric Geometry · Mathematics 2025-05-30 Shay Sadovsky , Gaoyong Zhang

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…

Metric Geometry · Mathematics 2014-12-01 Astrid Berg , Lukas Parapatits , Franz E. Schuster , Manuel Weberndorfer

The Orlicz-Brunn-Minkowski theory receives considerable attention recently, and many results in the $L_p$-Brunn-Minkowski theory have been extended to their Orlicz counterparts. The aim of this paper is to develop Orlicz $L_{\phi}$ affine…

Metric Geometry · Mathematics 2015-05-12 Deping Ye

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…

Differential Geometry · Mathematics 2014-04-14 Judit Abardia , Thomas Wannerer

A complete classification is established of Minkowski valuations on lattice polytopes that intertwine the special linear group over the integers and are translation invariant. In the contravariant case, the only such valuations are…

Metric Geometry · Mathematics 2019-06-21 Karoly J. Boroczky , Monika Ludwig

Lutwak's affine quermassintegral theory is a foundational component of modern affine Brunn--Minkowski theory. Developed in the 1980s, it provides affine analogues of the classical quermassintegrals and has led to a rich family of sharp…

Analysis of PDEs · Mathematics 2026-05-04 Shibing Chen , Yuanyuan Li , Xianduo Wang

The classical Petty projection inequality is an affine isoperimetric inequality which constitutes a cornerstone in the affine geometry of convex bodies. By extending the polar projection body to an inter-dimensional operator, Petty's…

Metric Geometry · Mathematics 2025-08-29 Francisco Marín Sola

The space of Minkowski valuations on an m-dimensional complex vector space which are continuous, translation invariant and contravariant under the complex special linear group is explicitly described. Each valuation with these properties is…

Differential Geometry · Mathematics 2013-03-20 Judit Abardia , Andreas Bernig

The Petty projection inequality is a fundamental affine isoperimetric principle for convex sets. It has shaped several directions of research in convex geometry which forged new connections between projection bodies, centroid bodies, and…

Metric Geometry · Mathematics 2025-01-03 Grigoris Paouris , Peter Pivovarov , Kateryna Tatarko

Sharp Lp affine isoperimetric inequalities are established for the entire class of Lp projection bodies and the entire class of Lp centroid bodies. These new inequalities strengthen the Lp Petty projection and the Lp Busemann--Petty…

Differential Geometry · Mathematics 2008-09-12 Christoph Haberl , Franz E. Schuster

The Brunn-Minkowski theory in convex geometry concerns, among other things, the volumes, mixed volumes, and surface area measures of convex bodies. We study generalizations of these concepts to Borel measures with density in…

Metric Geometry · Mathematics 2024-03-13 Matthieu Fradelizi , Dylan Langharst , Mokshay Madiman , Artem Zvavitch

Dual to Koldobsky's notion of j-intersection bodies, the class of j-projection bodies is introduced, generalizing Minkowski's classical notion of projection bodies of convex bodies. A Fourier analytic characterization of j-projection bodies…

Metric Geometry · Mathematics 2016-08-15 Felix Dorrek , Franz E. Schuster
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