On The Heine-Borel Property and Minimum Enclosing Balls
Computational Geometry
2025-03-05 v2 Metric Geometry
Abstract
In this paper, we contribute a proof that minimum radius balls over metric spaces with the Heine-Borel property are always LP type. Additionally, we prove that weak metric spaces, those without symmetry, also have this property if we fix the direction in which we take their distances from the centers of the balls. We use this to prove that the minimum radius ball problem is LP type in the Hilbert and Thompson metrics and Funk weak metric. In doing so, we contribute a proof that the topology induced by the Thompson metric coincides with the Hilbert. We provide explicit primitives for computing the minimum radius ball in the Hilbert metric.
Cite
@article{arxiv.2412.17138,
title = {On The Heine-Borel Property and Minimum Enclosing Balls},
author = {Hridhaan Banerjee and Carmen Isabel Day and Megan Hunleth and Sarah Hwang and Auguste H. Gezalyan and Olya Golovatskaia and Nithin Parepally and Lucy Wang and David M. Mount},
journal= {arXiv preprint arXiv:2412.17138},
year = {2025}
}