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Extensions 1→N→G→Q→1 with N=C2 and Q=SD16:C4

Direct product G=NxQ with N=C2 and Q=SD16:C4
dρLabelID
C2xSD16:C464C2xSD16:C4128,1672


Non-split extensions G=N.Q with N=C2 and Q=SD16:C4
extensionφ:Q→Aut NdρLabelID
C2.1(SD16:C4) = SD16:C8central extension (φ=1)64C2.1(SD16:C4)128,310
C2.2(SD16:C4) = D4:C42central extension (φ=1)64C2.2(SD16:C4)128,494
C2.3(SD16:C4) = Q8:C42central extension (φ=1)128C2.3(SD16:C4)128,495
C2.4(SD16:C4) = C8:C42central extension (φ=1)128C2.4(SD16:C4)128,508
C2.5(SD16:C4) = D4.M4(2)central stem extension (φ=1)64C2.5(SD16:C4)128,317
C2.6(SD16:C4) = Q8:2M4(2)central stem extension (φ=1)64C2.6(SD16:C4)128,320
C2.7(SD16:C4) = C8:M4(2)central stem extension (φ=1)64C2.7(SD16:C4)128,324
C2.8(SD16:C4) = C2.(C4xD8)central stem extension (φ=1)64C2.8(SD16:C4)128,594
C2.9(SD16:C4) = Q8:(C4:C4)central stem extension (φ=1)128C2.9(SD16:C4)128,595
C2.10(SD16:C4) = (C2xSD16):14C4central stem extension (φ=1)64C2.10(SD16:C4)128,609
C2.11(SD16:C4) = (C2xSD16):15C4central stem extension (φ=1)64C2.11(SD16:C4)128,612
C2.12(SD16:C4) = C4.Q8:9C4central stem extension (φ=1)128C2.12(SD16:C4)128,651
C2.13(SD16:C4) = C4.Q8:10C4central stem extension (φ=1)128C2.13(SD16:C4)128,652
C2.14(SD16:C4) = D4:C4:C4central stem extension (φ=1)64C2.14(SD16:C4)128,657
C2.15(SD16:C4) = C2.(C4xQ16)central stem extension (φ=1)128C2.15(SD16:C4)128,660
C2.16(SD16:C4) = C2.(C8:D4)central stem extension (φ=1)128C2.16(SD16:C4)128,667
C2.17(SD16:C4) = C2.(C8:2D4)central stem extension (φ=1)64C2.17(SD16:C4)128,668
C2.18(SD16:C4) = C8:(C4:C4)central stem extension (φ=1)128C2.18(SD16:C4)128,676
C2.19(SD16:C4) = C8:(C22:C4)central stem extension (φ=1)64C2.19(SD16:C4)128,705

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