Acta mathematica scientia,Series B ›› 2025, Vol. 45 ›› Issue (1): 40-51.doi: 10.1007/s10473-025-0104-z

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WEIGHTED CONE-VOLUME MEASURES OF PSEUDO-CONES

Rolf Schneider   

  1. Mathematisches Institut, Albert-Ludwigs-Universität, D-79104 Freiburg i. Br., Germany
  • Received:2024-07-22 Published:2025-02-06
  • About author:Rolf Schneider, E-mail,: rolf.schneider@math.uni-freiburg.de

Abstract: A pseudo-cone in $\mathbb{R}^{n}$ is a nonempty closed convex set $K$ not containing the origin and such that $\lambda K \subseteq K$ for all $\lambda\ge 1$. It is called a $C$-pseudo-cone if $C$ is its recession cone, where $C$ is a pointed closed convex cone with interior points. The cone-volume measure of a pseudo-cone can be defined similarly as for convex bodies, but it may be infinite. After proving a necessary condition for cone-volume measures of $C$-pseudo-cones, we introduce suitable weights for cone-volume measures, yielding finite measures. Then we provide a necessary and sufficient condition for a Borel measure on the unit sphere to be the weighted cone-volume measure of some $C$-pseudo-cone.

Key words: pseudo-cone, surface area measure, cone-volume measure, weighting, Minkowski type problem

CLC Number: 

  • 52A20
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