Extensions 1→N→G→Q→1 with N=C2 and Q=C4xD9

Direct product G=NxQ with N=C2 and Q=C4xD9
dρLabelID
C2xC4xD972C2xC4xD9144,38


Non-split extensions G=N.Q with N=C2 and Q=C4xD9
extensionφ:Q→Aut NdρLabelID
C2.1(C4xD9) = C8xD9central extension (φ=1)722C2.1(C4xD9)144,5
C2.2(C4xD9) = C4xDic9central extension (φ=1)144C2.2(C4xD9)144,11
C2.3(C4xD9) = C8:D9central stem extension (φ=1)722C2.3(C4xD9)144,6
C2.4(C4xD9) = Dic9:C4central stem extension (φ=1)144C2.4(C4xD9)144,12
C2.5(C4xD9) = D18:C4central stem extension (φ=1)72C2.5(C4xD9)144,14

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