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Hecke群的同余子群

Congruence Subgroups of Hecke Groups
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摘要 Hecke群为PSL(2,R)的一类重要的离散子群,它们在研究Dirichlet级数起了重要的作用。Hecke群的有限指数的子群(称这些子群为Hecke群的同余子群)同样在研究Dirichlet级数发挥了重要作用,调查这些子群的结构是非常必要的。这些子群中,人们特别关注那些正规的同余子群。对于Hecke群H(q),级为2的幂的主同余正规子群的结构将会被调查。 Hecke groups are an important class of discrete subgroups of PSL (2, R), which play an important role in studying Dirichlet series. Subgroups with finite index of a Hecke group, which are called congruence subgroup, are often used in researching Dirichlet series, so it is necessary to investigate their structure. Especially, people pay much attention to those normal subgroup. For the Hecke group H (√q), the principal subgroups of level a power of 2 are discussed.
作者 陈波 袁平之
出处 《中山大学学报(自然科学版)》 CAS CSCD 北大核心 2007年第6期1-4,共4页 Acta Scientiarum Naturalium Universitatis Sunyatseni
基金 国家自然科学基金资助项目(10571180) 广东省自然科学基金资助项目(04009801)
关键词 Hecke群 主同余子群 同余子群 Hecke group principal congruence subgroup congruence subgroup
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参考文献11

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