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A classification of upper semicontinuous, translation and dually epi-translation invariant valuations is established on the space of convex Lipschitz function on $\mathbb{R}$ with compact domain.

泛函分析 · 数学 2025-10-08 Fernanda M. Baêta

The algebra of smooth translation-invariant valuations on convex bodies, introduced by S.Alesker in the early 2000s, was in part proved and in part conjectured to satisfy properties formally analogous to those of the cohomology ring of a…

微分几何 · 数学 2024-02-15 Andreas Bernig , Jan Kotrbatý , Thomas Wannerer

Continuous dually epi-translation invariant valuations on convex functions are characterized in terms of the Fourier-Laplace transform of the associated Goodey-Weil distributions. This description is used to obtain integral representations…

泛函分析 · 数学 2025-05-29 Jonas Knoerr

We introduce and study a new class of $\eps$-convex bodies (extending the class of convex bodies) in metric and normed linear spaces. We analyze relations between characteristic properties of convex bodies, demonstrate how $\eps$-convex…

微分几何 · 数学 2016-02-03 Vladimir Golubyatnikov , Vladimir Rovenski

We introduce the new notion of convolution of a (smooth or generalized) valuation on a group $G$ and a valuation on a manifold $M$ acted upon by the group. In the case of a transitive group action, we prove that the spaces of smooth and…

微分几何 · 数学 2018-01-30 Semyon Alesker , Andreas Bernig

Classifications of $\rm{SL}(n)$ covariant function-valued valuations are established with some assumptions of continuity. New valuations, for example, weighted moment functions, are introduced and our classifications give unified…

度量几何 · 数学 2021-12-21 Jin Li

We study real-valued, continuous and translation invariant valuations defined on the space of quasi-concave functions of N variables. In particular, we prove a homogeneous decomposition theorem of McMullen type, and we find a representation…

度量几何 · 数学 2017-03-21 Andrea Colesanti , Nico Lombardi , Lukas Parapatits

We obtain new general results on the structure of the space of translation invariant continuous valuations on convex sets (a version of the hard Lefschetz theorem). Using these and our previous results we obtain explicit characterization of…

度量几何 · 数学 2007-05-23 Semyon Alesker

Very recently J. Kotrbaty has proven general inequalities for translation invariant smooth valuations formally analogous to the Hodge- Riemann bilinear relations in the Kahler geometry. The goal of this note is to apply Kotrbaty's theorem…

度量几何 · 数学 2020-10-20 Semyon Alesker

We study translation invariant, real-valued valuations on the class of convex polytopes in Euclidean space and discuss which continuity properties are sufficient for an extension of such valuations to all convex bodies. For this purpose, we…

度量几何 · 数学 2014-09-03 Wolfram Hinderer , Daniel Hug , Wolfgang Weil

Estimating the coefficient functionals on various classes of holomorphic functions traditionally forms an important field of geometric complex analysis and its mathematical and physical applications. These coefficients reflect fundamental…

复变函数 · 数学 2025-07-29 Samuel L. Krushkal

Valuations constitute a class of functionals on convex bodies which include the Euler-characteristic, the surface area, the Lebesgue-measure, and many more classical functionals. Curvature measures may be regarded as "localised`` versions…

微分几何 · 数学 2020-12-08 Mykhailo Saienko

All continuous, SL$(n)$ and translation invariant valuations on the space of convex functions on ${\mathbb R}^n$ are completely classified.

泛函分析 · 数学 2019-06-18 Andrea Colesanti , Monika Ludwig , Fabian Mussnig

The famous Hadwiger theorem classifies all rigid motion invariant continuous valuations on convex sets as linear conbinations of quermassintegrals. We prove much more general result. We classify continuous valuations which are invariant…

度量几何 · 数学 2016-09-07 Semyon Alesker

Extension problems for polynomial valuations on different cones of convex functions are investigated. It is shown that for the classes of functions under consideration, the extension problem reduces to a simple geometric obstruction on the…

泛函分析 · 数学 2024-08-14 Jonas Knoerr , Jacopo Ulivelli

An overview of some of the recent developments in the theory of valuations on convex sets and its generalizations to manifolds is given. The exposition is focused towards applications to integral geometry; several of such applications are…

度量几何 · 数学 2010-08-30 Semyon Alesker

The decomposition of the space of continuous and translation invariant valuations into a sum of SO(n) irreducible subspaces is obtained. A reformulation of this result in terms of a Hadwiger type theorem for continuous translation invariant…

微分几何 · 数学 2011-08-16 Semyon Alesker , Andreas Bernig , Franz E. Schuster

Convolution of valuations was introduced by the first named author and Fu for linear spaces, and later by Alesker and the first named author for compact Lie groups. In this paper we study the convolution of invariant valuations on Lie…

微分几何 · 数学 2025-12-02 Andreas Bernig , Dmitry Faifman , Jan Kotrbatý

This is the first part of a series of articles where we are going to develop theory of valuations on manifolds generalizing the classical theory of continuous valuations on convex subsets of a linear space. In this article we still work…

度量几何 · 数学 2011-11-16 Semyon Alesker

In convex geometry, the constructions that assign to a convex body its difference body, projection body, or volume have the following properties: They are (1) invariant under volume-preserving linear changes of coordinates; (2) continuous;…

度量几何 · 数学 2024-02-12 Jakob Henkel , Thomas Wannerer