InnerActor( X )
The inner actor of X
is the image of the inner morphism.
gap> InnActXSC := InnerActor( XSC ); Crossed module InnerActor[c3->s3] gap> XModPrint( InnActXSC );Crossed module InnerActor[c3->s3] :- : Source group has parent ( WG([c3->s3]) ) and has generators: [ (1,3,2)(4,5,6) ] : Range group has parent ( PermAut(c3)xPermAut(s3) ) and has generators: [ (5,7,6), (1,2)(3,4)(6,7) ] : Boundary homomorphism maps source generators to: [ (5,6,7) ] : Action homomorphism maps range generators to automorphisms: (5,7,6) --> { source gens --> [ (1,3,2)(4,5,6) ] } (1,2)(3,4)(6,7) --> { source gens --> [ (1,2,3)(4,6,5) ] } These 2 automorphisms generate the group of automorphisms.
GAP 3.4.4