On Subgroups of Tetrahedron Groups
We present a framework to determine subgroups of tetrahedron groups and tetrahedron Kleinian groups, based on tools in color symmetry theory.
math.GR↗
arXiv subjects
Glenn R. Laigo
Publications and source records attributed to Glenn R. Laigo.
On the Subgroups of the Extended Hecke, Hecke and Picard Groups
In this work, we derive the low index subgroups of the extended Hecke, Hecke and the Picard groups using tools in color symmetry theory. We also present the low index subgroups of the modular group.
math.GR↗