A CLASS OF CONGRUENCE SUBGROUPS OF HECKE GROUP H ( lambda(5))

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Atıf İçin Kopyala

DEMİRCİ M., CANGÜL İ. N.

BULLETIN OF THE INSTITUTE OF MATHEMATICS ACADEMIA SINICA NEW SERIES, cilt.1, sa.4, ss.549-556, 2006 (ESCI)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 1 Sayı: 4
• Basım Tarihi: 2006
• Dergi Adı: BULLETIN OF THE INSTITUTE OF MATHEMATICS ACADEMIA SINICA NEW SERIES
• Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI)
• Sayfa Sayıları: ss.549-556
• Bursa Uludağ Üniversitesi Adresli: Evet

Özet

In [2], it is shown that, for some Hecke groups, unlike the modular group, two definitions of the principal congruence subgroups may not coincide and congruence and principal congruence subgroups of two important Hecke groups H (SICm), for m = 2 or 3, are classified and the quotients of H (SICm) with these normal subgroups are given. Here we obtain a classification of the congruence subgroups obtained as the kernel of reduction homomorphism for another important Hecke group H (lambda(5)) and also obtain the quotient groups. Finally the indices and abstract group structure of all these subgroups are determined.