[GAP Forum] free module

Bill Allombert Bill.Allombert at math.u-bordeaux.fr
Tue Oct 4 13:33:03 BST 2016


On Tue, Oct 04, 2016 at 12:31:49PM +0300, Alper Odabaş wrote:
> Dear forum,
> 
> By linear algebra, the choice of an (ordered) basis for a free module of
> finite rank m yields an isomorphism to Z^{1 x m}, the module whose entries
> are row matrices with m columns.
> 
> In GAP, how to get matrices from the group algebra
> GroupRing(GF(2),CyclicGroup(3))

M:=IdentityMat(3,GF(2));

Cheers,
Bill.



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