English

A Poincar\'{e} ball model for taxicab hyperbolic geometry

Metric Geometry 2025-04-22 v2

Abstract

Taxicab space is a modification of Euclidean space that uses an alternative notion of distance. Similarly, the Poincar\'{e} ball is a model of hyperbolic geometry that consists of a subset of Euclidean space with an alternative notion of distance. In this paper, we merge these two variations to create a taxicab version of the Poincar\'{e} ball. We determine the isometry group for this new space and show that this space is hyperbolic in the sense of Gromov.

Keywords

Cite

@article{arxiv.2305.08825,
  title  = {A Poincar\'{e} ball model for taxicab hyperbolic geometry},
  author = {Aaron Fish and Dylan Helliwell},
  journal= {arXiv preprint arXiv:2305.08825},
  year   = {2025}
}

Comments

24 pages, 8 figures

R2 v1 2026-06-28T10:34:59.580Z