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MAGMA Computational Algebra System

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Next: Permutation Groups Up: Groups Previous: Groups


Finite Groups


Changes:

  • The MaximalSubgroups functions for groups of type GrpAb and GrpPC have been changed to return a sequence of records, as this function does for permutation and matrix groups.


New Features:

  • The function CohomologyGroup has been sped up significantly.
  • New algorithms for constructing all subgroups from maximal subgroups have been implemented, with speed improvements, and the ability to handle groups with larger abelian chief factors than the previous method allowed.


Bug Fixes:

  • A number of bugs in the filtering code of the Subgroups family of functions have been fixed. Generally these bugs caused subgroup classes to be missed, rather than causing a crash.


next up previous
Next: Permutation Groups Up: Groups Previous: Groups

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