Dergiler / Turkish Journal of Mathematics / 2007 / Cilt: 31 - Sayı: 2
On the Normalizer of the Congruence Subgroup H05(I) of the Hecke Group H5
- Sayfa
- 207–220
- DOI
- —
Özet
Let l = 2 cos \frac{p}{5} and let H5 be the Hecke group associated to l. In this paper, the normalizers of the congruence subgroups H05(I) in PSL(2Z[l]) are studied in the case where I = (2)aI ', (2, I') = 1 and I' is a prime ideal.
Abstract
Let l = 2 cos \frac{p}{5} and let H5 be the Hecke group associated to l. In this paper, the normalizers of the congruence subgroups H05(I) in PSL(2Z[l]) are studied in the case where I = (2)aI ', (2, I') = 1 and I' is a prime ideal.