Dear Bill, dear Forum, On 20 Aug 2012, at 17:38, Bill C wrote:
> I defined a group, with infinite center. I want to know if the center (with > many generators) is torsion free. I have tried to use the commands > > IsTorsion > Torsion > IsFreeAbelian > > And they are not recognized. > Advice, pointers? > > Bill It may be useful to remind that you may use search facilities from the GAP command line. For example, to look for manual entries containing the word 'Torsion', use: gap> ??Torsion Help: several entries match this topic - type ?2 to get match [2] [1] FR (not loaded): IsTorsionGroup [2] FR (not loaded): IsTorsionFreeGroup [3] HAP (not loaded): Torsion subcomplexes [4] HAP (not loaded): TorsionGeneratorsAbelianGroup [5] HAP (not loaded): TorsionSubcomplex [6] HAP (not loaded): VisualizeTorsionSkeleton [7] HAP (not loaded): ReduceTorsionSubcomplex [8] homalg (not loaded): IsTorsionFree [9] homalg (not loaded): IsTorsion [10] homalg (not loaded): TorsionSubobject [11] homalg (not loaded): DegreeOfTorsionFreeness [12] polycyclic: TorsionByPolyEFSeries [13] polycyclic: TorsionSubgroup [14] polycyclic: NormalTorsionSubgroup [15] polycyclic: IsTorsionFree [16] RCWA (not loaded): An infinite subgroup of CT(GF(2)[x]) with many torsion elements Hope this helps, Alexander _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
