Abstract

Let l = 2 cos \frac{\pi}{5} and let H^5 be the Hecke group associated to l. In this paper, the normalizers of the congruence subgroups H_0^5(I) in PSL(2Z[\lambda]) are studied in the case where I = (2)^aI ', (2, I') = 1 and I' is a prime ideal.

DOI

Keywords

Normalizer, Congruence subgroup, Hecke group

First Page

207

Last Page

220

Recommended Citation

UZUN, S (2007). On the Normalizer of the Congruence Subgroup H_0^5(I) of the Hecke Group H^5. Turkish Journal of Mathematics 31 (2): 207-220. https://doi.org/-

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