Some maximal normal subgroups of the modular group

DOI10.1017/S0013091500018010zbMath0605.20048MaRDI QIDQ3743502

Gareth A. Jones

Publication date: 1987

Published in: Proceedings of the Edinburgh Mathematical Society (Search for Journal in Brave)

zbMATH Keywords

Möbius inversion formulaprincipal congruence subgroupnon-congruence subgroup\(PSL_ 2\)normal subgroups of modular group

Mathematics Subject Classification ID

Subgroup theorems; subgroup growth (20E07) Unimodular groups, congruence subgroups (group-theoretic aspects) (20H05) Structure of modular groups and generalizations; arithmetic groups (11F06) Other matrix groups over fields (20H20)

Cites Work

• The number of abstract definitions of \(\text{LF}(2,p)\) as a quotient group of \((2,3,n)\).
• Triangular Maps and Non-Congruence Subgroups of the Modular Group
• Theory of Maps on Orientable Surfaces
• Classification of Normal Congruence Subgroups of the Modular Group
• Maximal Normal Subgroups of the Modular Group
• THE EULERIAN FUNCTIONS OF A GROUP

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