On the Normalizer of the Congruence Subgroup H05(I) of the Hecke Group H5

Authors : Süleyman UZUN

Pages : 207-220

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Publication Date : 0000-00-00

Article Type : Research Paper

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 H05insert ignore into journalissuearticles values(I); in PSLinsert ignore into journalissuearticles values(2Z[l]); are studied in the case where I = insert ignore into journalissuearticles values(2);aI `, insert ignore into journalissuearticles values(2, I`); = 1 and I` is a prime ideal.
Keywords : Normalizer, Congruence subgroup, Hecke group