XModMorphismAutoPerm( X, perm )
Given the isomorphism between the automorphism group of X
and its
permutation representation PermAut(X)
, an element of the latter
determines an automorphism of X
.
gap> XModMorphismAutoPerm( XSC, (1,2)(3,4)(6,7) ); Morphism of crossed modules <[c3->s3] >-> [c3->s3]>
GAP 3.4.4