Free subgroups and normal subgroups of the modular group
From MaRDI portal
Publication:2626917
zbMath0123.02803MaRDI QIDQ2626917
Publication date: 1964
Published in: Illinois Journal of Mathematics (Search for Journal in Brave)
Related Items
On parabolic and elliptic elements of the modular group ⋮ Quotients of the congruence kernels of \(\text{SL}_ 2\) over arithmetic Dedekind domains ⋮ On subgroups of \(GL_ 2\) over Banach algebras and von Neumann regular rings which are normalized by elementary matrices ⋮ Normal subgroups of symplectic groups over rings ⋮ Continued fractions related to a group of linear fractional transformations ⋮ On a Theorem by Leon Greenberg ⋮ Power and free normal subgroups of generalized Hecke groups ⋮ Classification of Normal Subgroups of the Modular Group ⋮ Commutator subgroups of the power subgroups of some Hecke groups. ⋮ On the structure of \(GL_ 2\) over stable range one rings ⋮ \(H\)-convex standard fundamental domain of a subgroup of a modular group ⋮ Power subgroups of some Hecke groups. ⋮ Some normal subgroups of the extended Hecke groups \(\overline H(\lambda_p)\). ⋮ Normal subgroups of \(SL_ 2(k[t)\) with or without free quotients] ⋮ Normal subgroups of Hecke groups \(H(\lambda)\). ⋮ The Normal Subgroup Structure of the Picard Group
