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arXiv · 1602.03438

Minkowski valuations under volume constraints

Judit Abardia-Evéquoz·Andrea Colesanti·Eugenia Saorín Gómez
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Abstract

We provide a description of the space of continuous and translation invariant Minkowski valuations $\Phi:\mathcal{K}^n\to\mathcal{K}^n$ for which there is an upper and a lower bound for the volume of $\Phi(K)$ in terms of the volume of the convex body $K$ itself. Although no invariance with respect to a group acting on the space of convex bodies is imposed, we prove that only two types of operators appear: a family of operators having only cylinders over $(n-1)$-dimensional convex bodies as images, and a second family consisting essentially of 1-homogeneous operators. Using this description, we give improvements of some known characterization results for the difference body.

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Judit Abardia-Evéquoz, Andrea Colesanti, Eugenia Saorín Gómez. 2016-02-10. Minkowski valuations under volume constraints. https://arxiv.org/abs/1602.03438

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