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arXiv · 2310.19562

A weighted Minkowski theorem for pseudo-cones

Rolf Schneider
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Abstract

A nonempty closed convex set in ${\mathbb R}^n$, not containing the origin, is called a pseudo-cone if with every $x$ it also contains $λx$ for $x\ge 1$. We consider pseudo-cones with a given recession cone $C$, called $C$-pseudo-cones. The family of $C$-pseudo-cones can, with reasonable justification, be considered as a counterpart to the family of convex bodies containing the origin in the interior. For a $C$-pseudo-cone one can naturally define a surface area measure and a covolume. Since they are in general infinite, we introduce a weighting, leading to modified versions of surface area and covolume. These are finite and still homogeneous, though of different degrees. Our main result is a Minkowski type existence theorem for $C$-pseudo-cones with given weighted surface area measure.

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Rolf Schneider. 2023-11-28. A weighted Minkowski theorem for pseudo-cones. https://arxiv.org/abs/2310.19562

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