On the principal congruence subgroups of the Hecke-group \(H(\sqrt{5})\) (Q1875901)
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scientific article; zbMATH DE number 2096232
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the principal congruence subgroups of the Hecke-group \(H(\sqrt{5})\) |
scientific article; zbMATH DE number 2096232 |
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On the principal congruence subgroups of the Hecke-group \(H(\sqrt{5})\) (English)
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1 September 2004
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The authors use elementary methods (quadratic reciprocity, permutation method, and Riemann-Hurwitz) as well as results of \textit{A. M. Macbeath} [Number Theory, Proc. Sympos. Pure Math. 12, 14--32 (1969; Zbl 0192.35703)] to discuss what they very reasonably define as principal congruence subgroups of the Hecke triangle Fuchsian group (of the second kind), of translation length \(\sqrt{5}\).
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Hecke groups
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