An Algorithm for Computing Cocyclic Matrices Developed over Some Semidirect Products

نویسندگان

  • Víctor Álvarez
  • José Ándrés Armario
  • María Dolores Frau
  • Pedro Real Jurado
چکیده

An algorithm for calculating a set of generators of representative 2-cocycles on semidirect product of finite abelian groups is constructed, in light of the theory over cocyclic matrices developed by Horadam and de Launey in [7,8]. The method involves some homological perturbation techniques [3,1], in the homological correspondent to the work which Grabmeier and Lambe described in [12] from the viewpoint of cohomology. Examples of explicit computations over all dihedral groups D4t are given, with aid of Mathematica.

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تاریخ انتشار 2001