Resumen de One-cusped congruence subgroups of Bianchi groups
We show that there are only finitely many maximal congruence subgroups of the Bianchi groups such that the quotient by H3 has only one cusp.
We show that there are only finitely many maximal congruence subgroups of the Bianchi groups such that the quotient by H3 has only one cusp.
