Extensions 1→N→G→Q→1 with N=C3 and Q=C3×C21

Direct product G=N×Q with N=C3 and Q=C3×C21
dρLabelID
C32×C21189C3^2xC21189,13


Non-split extensions G=N.Q with N=C3 and Q=C3×C21
extensionφ:Q→Aut NdρLabelID
C3.1(C3×C21) = C7×He3central stem extension (φ=1)633C3.1(C3xC21)189,10
C3.2(C3×C21) = C7×3- 1+2central stem extension (φ=1)633C3.2(C3xC21)189,11

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