Extensions 1→N→G→Q→1 with N=C3 and Q=D4×C9

Direct product G=N×Q with N=C3 and Q=D4×C9
dρLabelID
D4×C3×C9108D4xC3xC9216,76

Semidirect products G=N:Q with N=C3 and Q=D4×C9
extensionφ:Q→Aut NdρLabelID
C31(D4×C9) = C9×D12φ: D4×C9/C36C2 ⊆ Aut C3722C3:1(D4xC9)216,48
C32(D4×C9) = C9×C3⋊D4φ: D4×C9/C2×C18C2 ⊆ Aut C3362C3:2(D4xC9)216,58

Non-split extensions G=N.Q with N=C3 and Q=D4×C9
extensionφ:Q→Aut NdρLabelID
C3.(D4×C9) = D4×C27central extension (φ=1)1082C3.(D4xC9)216,10

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