Extensions 1→N→G→Q→1 with N=C3 and Q=C31:C3

Direct product G=NxQ with N=C3 and Q=C31:C3
dρLabelID
C3xC31:C3933C3xC31:C3279,3


Non-split extensions G=N.Q with N=C3 and Q=C31:C3
extensionφ:Q→Aut NdρLabelID
C3.(C31:C3) = C31:C9central extension (φ=1)2793C3.(C31:C3)279,1

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