Parametrizing Fuchsian Subgroups of the Bianchi Groups
Parametrizing Fuchsian Subgroups of the Bianchi Groups
Let d be a positive square-free integer and let O d denote the ring of integers in . The groups PSL 2 (O d ) are collectively known as the Bianchi groups and have been widely studied from the viewpoints of group theory, number theory and low-dimensional topology. The interest …