Extensions 1→N→G→Q→1 with N=C9 and Q=C4:C4

Direct product G=NxQ with N=C9 and Q=C4:C4
dρLabelID
C9xC4:C4144C9xC4:C4144,22

Semidirect products G=N:Q with N=C9 and Q=C4:C4
extensionφ:Q→Aut NdρLabelID
C9:1(C4:C4) = Dic9:C4φ: C4:C4/C2xC4C2 ⊆ Aut C9144C9:1(C4:C4)144,12
C9:2(C4:C4) = C4:Dic9φ: C4:C4/C2xC4C2 ⊆ Aut C9144C9:2(C4:C4)144,13


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