Dear Forum, On Oct 12, 2013, at 10/12/13 3:44, Takjk Taj <mathp...@yahoo.com> wrote:
> Dear Gap forum, > > For a finite group G, let G\cong F/R for a free group F. If N is a normal > subgroup of G. How we can find the normal subgroup S of F by GAP such that > N\cong S/R? If phi is a homomorphism from F to G (likely constructed as GroupHomomorphismByImages on the generators), take PreImage(Phi,N) Regards, Alexander Hulpke _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
