On the structure of certain arithmetic subgroups of SL2()

DOI10.1017/S0305004100062769zbMath0559.20035MaRDI QIDQ5185257

Colin Maclachlan

Publication date: 1985

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

zbMATH Keywords

arithmetic subgroupfree product with amalgamationarithmetic Fuchsian groups, signature of Fuchsian groups

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) Fuchsian groups and their generalizations (group-theoretic aspects) (20H10) Free products of groups, free products with amalgamation, Higman-Neumann-Neumann extensions, and generalizations (20E06) Fuchsian groups and automorphic functions (aspects of compact Riemann surfaces and uniformization) (30F35)

Cites Work

• Unnamed Item
• Doubly generated Fuchsian groups
• Two generator Fuchsian groups of genus one
• On the Commensurability Class of the Rational Modular Group

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