73.23 IsAutomorphismXMod

XModOps.IsAutomorphismXMod( X )

This Boolean function checks that the range group is a subgroup of the automorphism group of the source group containing the group of inner automorphisms, and that the boundary and action homomorphisms are of the correct form.

    gap> IsAutomorphismXMod( AX );
    true 

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GAP 3.4.4
April 1997