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| Title: | Normalizers of the congruence subgroups of the hecke group G5 II | Authors: | Lang, M.-L. Tan, S.-P. |
Keywords: | Congruence subgroups Hecke groups |
Issue Date: | 2000 | Citation: | Lang, M.-L.,Tan, S.-P. (2000). Normalizers of the congruence subgroups of the hecke group G5 II. Proceedings of the American Mathematical Society 128 (8) : 2271-2280. ScholarBank@NUS Repository. | Abstract: | Let λ = 2 cos(π/5). Let (τ) be an ideal of ℤ[λ] and let (τ0) be the maximal ideal of ℤ[λ] such that (τ0 2) ⊆ (τ). Then N(G0(τ)) ≤ G0(τ0). In particular, if τ is square free, then G0(τ) is self-normalized in PSL2(ℝ). ©2000 American Mathematical Society. | Source Title: | Proceedings of the American Mathematical Society | URI: | http://scholarbank.nus.edu.sg/handle/10635/103643 | ISSN: | 00029939 |
| Appears in Collections: | Staff Publications |
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