Equivariant Valuations on Convex Functions
Metric Geometry
2024-07-12 v1 Functional Analysis
Abstract
We classify all continuous valuations on the space of finite convex functions with values in the same space which are dually epi-translation-invariant and equi- resp. contravariant with respect to volume-preserving linear maps. We thereby identify the valuation-theoretic functional analogues of the difference body map and show that there does not exist a generalization of the projection body map in this setting. This non-existence result is shown to also hold true for valuations with values in the space of convex functions that are finite in a neighborhood of the origin.
Cite
@article{arxiv.2407.08304,
title = {Equivariant Valuations on Convex Functions},
author = {Georg C. Hofstätter and Jonas Knoerr},
journal= {arXiv preprint arXiv:2407.08304},
year = {2024}
}