Subgroups of the hecke groups with small index

DOI10.1080/03081089308818243zbMath0784.20022OpenAlexW1972248332MaRDI QIDQ4693431

Chong-Hai Lim, Mong-Lung Lang, Ser-Peow Tan

Publication date: 17 August 1993

Published in: Linear and Multilinear Algebra (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/03081089308818243

zbMATH Keywords

Hecke groupsfree productsnumber of subgroups

Mathematics Subject Classification ID

Subgroup theorems; subgroup growth (20E07) Fuchsian groups and their generalizations (group-theoretic aspects) (20H10) Free products of groups, free products with amalgamation, Higman-Neumann-Neumann extensions, and generalizations (20E06)

Related Items (3)

Wohlfahrt's theorem for the Hecke group \(G_5\) ⋮ Some results on Hecke and extended Hecke groups ⋮ A simple proof of the Markoff conjecture for prime powers

Cites Work

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• An Arithmetic-Geometric Method in the Study of the Subgroups of the Modular Group
• Schreier systems in free products

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