Extensions 1→N→G→Q→1 with N=C9 and Q=C4○D4

Direct product G=N×Q with N=C9 and Q=C4○D4
dρLabelID
C9×C4○D4722C9xC4oD4144,50

Semidirect products G=N:Q with N=C9 and Q=C4○D4
extensionφ:Q→Aut NdρLabelID
C91(C4○D4) = D365C2φ: C4○D4/C2×C4C2 ⊆ Aut C9722C9:1(C4oD4)144,40
C92(C4○D4) = D42D9φ: C4○D4/D4C2 ⊆ Aut C9724-C9:2(C4oD4)144,42
C93(C4○D4) = Q83D9φ: C4○D4/Q8C2 ⊆ Aut C9724+C9:3(C4oD4)144,44


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