Squares of Congruence Subgroups of the Extended Modular Group
نویسندگان
چکیده
In this paper, we generalize some results related to the congruence subgroups of modular group ; given in [7] and [6] by Kiming, Schütt, and Verrill, to the extended modular group ̆: 2010 Mathematics Subject Classification: 11F06
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تاریخ انتشار 2013