Extensions 1→N→G→Q→1 with N=C2 and Q=C9⋊D4

Direct product G=N×Q with N=C2 and Q=C9⋊D4
dρLabelID
C2×C9⋊D472C2xC9:D4144,46


Non-split extensions G=N.Q with N=C2 and Q=C9⋊D4
extensionφ:Q→Aut NdρLabelID
C2.1(C9⋊D4) = Dic9⋊C4central extension (φ=1)144C2.1(C9:D4)144,12
C2.2(C9⋊D4) = D18⋊C4central extension (φ=1)72C2.2(C9:D4)144,14
C2.3(C9⋊D4) = C18.D4central extension (φ=1)72C2.3(C9:D4)144,19
C2.4(C9⋊D4) = D4.D9central stem extension (φ=1)724-C2.4(C9:D4)144,15
C2.5(C9⋊D4) = D4⋊D9central stem extension (φ=1)724+C2.5(C9:D4)144,16
C2.6(C9⋊D4) = C9⋊Q16central stem extension (φ=1)1444-C2.6(C9:D4)144,17
C2.7(C9⋊D4) = Q82D9central stem extension (φ=1)724+C2.7(C9:D4)144,18

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