Constructing thin subgroups commensurable with the figure-eight knot group
arXiv:1410.8157 · doi:10.2140/agt.2015.15.3011
Abstract
In this paper we find infinitely many lattices in each of which contains thin subgroups commensurable with the figure-eight knot group.
11 pages, 1 figure. Fixed minor typos and incorporated referee comments. Small strengthening of main result. Removed second appendix. To appear Alg. & Geom. Top