Density upper bound for congruent and non-congruent hyperball packings generated by truncated regular simplex tilings

Abstract

In this paper we study congruent and non-congruent hyperball (hypersphere) packings of the truncated regular tetrahedron tilings. These are derived from the Coxeter simplex tilings $\{p,3,3\}$ $(7\le p\in \mathbb{N})$ and $\{5,3,3,3,3\}$ in $3$ and $5$-dimensional hyperbolic space. We determine the densest hyperball packing arrangements related to the above tilings. We find packing densities using congruent hyperballs and determine the smallest density upper bound of non-congruent hyperball packings generated by the above tilings.

24 pages, 5 figures. arXiv admin note: substantial text overlap with arXiv:1505.03338, arXiv:1312.2328, arXiv:1405.0248