On the principal congruence subgroups of the Hecke-group \(H(\sqrt{5})\)

zbMath1059.11035MaRDI QIDQ1875901

Ismail Naci Cangul, Nihal Yilmaz Özgür

Publication date: 1 September 2004

Published in: Beiträge zur Algebra und Geometrie (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/227067

zbMATH Keywords

Hecke groups

Mathematics Subject Classification ID

Unimodular groups, congruence subgroups (group-theoretic aspects) (20H05) Structure of modular groups and generalizations; arithmetic groups (11F06)

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Principal congruence subgroups of Hecke groups \(H(\sqrt{q})\)