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arXiv · 2605.15891

The Dual Minkowski Problem under Group Actions

Junjie Shan
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Abstract

In this paper, we study the dual Minkowski problem under group symmetry. For $0<q\le n$, we give a complete existence characterization in the framework of $G$-invariant convex bodies when the group $G\subset O(n)$ has no nonzero fixed points, recovering the origin-symmetric setting when $G=\{\pm I\}$. The necessary and sufficient conditions concern the concentration of the measure on $G$-invariant subspaces, both in the range $0<q<n$ and at the critical endpoint $q=n$, where the problem becomes the logarithmic Minkowski problem.

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Junjie Shan. 2026-05-15. The Dual Minkowski Problem under Group Actions. https://arxiv.org/abs/2605.15891

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