On rank two Kleinian groups with three parabolics
Group Theory
2026-07-08 v1 Geometric Topology
Abstract
The free group of rank is the fundamental group of the genus handlebody . We study discrete representations of this group into so that three disjoint simple closed curves on the conformal boundary are sent to parabolic elements. We show that the only infinite covolume groups of this form are maximal cusp groups on the boundary of genus Schottky space. We also exhibit hitherto unexpected finite covolume groups which do not arise from Heegaard splitting presentations of tunnel number links.
Cite
@article{arxiv.2607.07424,
title = {On rank two Kleinian groups with three parabolics},
author = {Alex Elzenaar},
journal= {arXiv preprint arXiv:2607.07424},
year = {2026}
}
Comments
14 pages, 10 figures. Key words: two-bridge links, Kleinian groups, Heegaard splittings, tunnel number one links, maximal cusp groups, identification of matrix groups. Correspondence welcome