Dear Abdulhakeem, I don't think GAP can give you a general answer. However, for each value of n it is straightforward:
gap> n := 10; 10 gap> g := DihedralGroup(2*n); <pc group of size 20 with 3 generators> gap> aut := AutomorphismGroup(g); <group of size 40 with 3 generators> gap> StructureDescription(aut); "C2 x (C5 : C4)" Hope this helps, Sven. -- Institut für Algebra TU Dresden On 18.07.2016 17:56, abdulhakeem alayiwola wrote: > Dear forum, > Can anyone in the house describe the steps to find Aut(D2n) using GAP. > Note that Aut(D2n) is Automorphism group of Dihedral group of order 2n. > Regards. > _______________________________________________ > Forum mailing list > [email protected] > http://mail.gap-system.org/mailman/listinfo/forum > _______________________________________________ Forum mailing list [email protected] http://mail.gap-system.org/mailman/listinfo/forum
