Extensions 1→N→G→Q→1 with N=C2 and Q=C17:D4

Direct product G=NxQ with N=C2 and Q=C17:D4
dρLabelID
C2xC17:D4136C2xC17:D4272,45


Non-split extensions G=N.Q with N=C2 and Q=C17:D4
extensionφ:Q→Aut NdρLabelID
C2.1(C17:D4) = C34.D4central extension (φ=1)272C2.1(C17:D4)272,12
C2.2(C17:D4) = D34:C4central extension (φ=1)136C2.2(C17:D4)272,14
C2.3(C17:D4) = C23.D17central extension (φ=1)136C2.3(C17:D4)272,19
C2.4(C17:D4) = D4:D17central stem extension (φ=1)1364+C2.4(C17:D4)272,15
C2.5(C17:D4) = D4.D17central stem extension (φ=1)1364-C2.5(C17:D4)272,16
C2.6(C17:D4) = Q8:D17central stem extension (φ=1)1364+C2.6(C17:D4)272,17
C2.7(C17:D4) = C17:Q16central stem extension (φ=1)2724-C2.7(C17:D4)272,18

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