[GAP Forum] Help/Question

[sievers at math2.nat.tu-bs.de]

Alexander Hulpke wrote:

> Both GL_n(Z) and the automorphism group of a free group do not fit either of these two classes, so calling `IsomorphismFpGroup' for such a group will simply yield an error message.

Actually, the fga package does provide a method for IsomorphismFpGroup
for automorphism groups of free groups, see
http://www.gap-system.org/Manuals/pkg/fga/htm/CHAP002.htm#SECT004

Abdulsatar, in a private mail you also asked about IsomorphismFpGroup
for automorphism groups of free groups. Here you are asking about the
automorphism group of free *abelian* groups. I'm sorry to inform you
that the fga package doesn't handle that case.
If you're also interested in the non-abelian case and have trouble
there, please give me details about your problems.


All the best,
Christian Sievers