Lattice subgroups of free congruence groups

DOI10.1007/BF01425514zbMath0146.04105MaRDI QIDQ2524081

Robert A. Rankin

Publication date: 1967

Published in: Inventiones Mathematicae (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/141853

zbMATH Keywords

group theory

Related Items

On subgroups of GL(n,A) which are generated by commutators, On the concept of level for subgroups of \(\text{SL}_2\) over arithmetic rings, On modular forms for some noncongruence subgroups of \(\text{SL}_2(\mathbb Z)\), Riemann surfaces, Linear groups, Ternary forms as invariants of Markoff forms and other \(SL_2(\mathbb{Z})\)- bundles, Lattice subgroups of free congruence groups, On Atkin and Swinnerton-Dyer congruence relations. III, Congruence properties of induced representations and their applications

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• Normal Subgroups of the Modular Group which are not Congruence Subgroups
• A Complete Description of the Normal Subgroups of Genus One of the Modular Group