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      GAP package Congruence

      Congruence subgroups of SL(2,Integers)

      The Congruence package provides functions to construct several types of canonical congruence subgroups in SL_2(Z), and also intersections of a finite number of such subgroups. Furthermore, it implements the algorithm for generating Farey symbols for congruence subgroups and using them to produce a system of independent generators for these subgroups

      Authors
      Ann Dooms, Eric Jespers, Alexander Konovalov, Helena Verrill
      Maintainers
      Ann Dooms, Alexander Konovalov, Helena Verrill
      Shipped Version
      1.2.3    (Released 19/05/2019)
      License
      GPL-2.0-or-later
      Status
      accepted    (communicated by Graham Ellis (Galway), accepted 01/09/2014)
      Dependencies
      GAP version: >=4.8
      Needed other packages: GAPDoc(>= 1.5.1)
      Documentation
      [HTML]     [PDF]

      Download

      [README]    congruence-1.2.3 [.tar.gz]    [.tar.bz2]    [-win.zip]    [.zip]

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