GTInvSubGroups

GTInvSubGroups[group]
gives the invariant subgroups of a group.

DetailsDetails

  • A subgroup of a group is called "invariant subgroup" if for every and every .
  • A necessary and sufficient condition for being an invariant subgroup of is satisfied if consists entirely of complete classes of .
  • Elements of group can be of type symbol, matrix, quaternion or Euler angles (compare GTEulerAnglesQ, GTQuaternionQ and GTSymbolQ).
  • The following option can be given:
  • GOFastGOFastValueSkips the input validation
  • See: W. Hergert, M. Geilhufe, Group Theory in Solid State Physics and Photonics. Problem Solving with Mathematica, Chapter 3.2

ExamplesExamplesopen allclose all

Basic Examples  (1)Basic Examples  (1)

First, load the package:

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Within the example we calculate the invariant sub groups of the group

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