[GAP Forum] A question about StructureDescription

[Mong So]

Dear Forum,
I would like to know how we can  understand the diversity between 
StructureDescription(SmallGroup(81,3));
StructureDescription(SmallGroup(81,8));
and StructureDescription(SmallGroup(81,14)).
Of course all of them have the presentation  "(C9 x C3) : C3" with different  semi direct products 
which induced by \phi : C3----> Aut(C9 x C3).
How we can exactly find the structure of  \phi in all cases?
Best regards.
Mong.


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