On 12 Jul 2012, at 17:58, Neha Makhijani <nehamakhij...@gmail.com> wrote:
> Can somebody please clarify as to why I am not able to get the irreducible > representations of the dihedral group over GF(4)?? > > IrreducibleRepresentations(DihedralGroup(10),GF(2^2)); > List Element: <position> must be a positive integer (not a boolean) > > Thanks! > > Neha Dear Neha, Sorry it took longer than we expected to fix this. Just released GAP 4.6.3 provides the default method for AbsoluteIrreducibleModules as a temporary workaround for the problem which may cause returning wrong results or producing an error when being called for a non-prime field. As a result, your example now works: gap> IrreducibleRepresentations(DihedralGroup(10),GF(2^2)); [ [ f1, f2 ] -> [ [ [ Z(2)^0 ] ], [ [ Z(2)^0 ] ] ], [ f1, f2 ] -> [ [ [ Z(2^2), Z(2)^0 ], [ Z(2^2), Z(2^2) ] ], [ [ 0*Z(2), Z(2)^0 ], [ Z(2)^0, Z(2^2) ] ] ], [ f1, f2 ] -> [ [ [ Z(2^2)^2, Z(2^2)^2 ], [ Z(2)^0, Z(2^2)^2 ] ], [ [ Z(2^2)^2, Z(2)^0 ], [ Z(2)^0, 0*Z(2) ] ] ] ] Best wishes, Alexander _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum