Extensions 1→N→G→Q→1 with N=C2 and Q=D4:2Dic7

Direct product G=NxQ with N=C2 and Q=D4:2Dic7
dρLabelID
C2xD4:2Dic7112C2xD4:2Dic7448,769


Non-split extensions G=N.Q with N=C2 and Q=D4:2Dic7
extensionφ:Q→Aut NdρLabelID
C2.1(D4:2Dic7) = C28.2C42central extension (φ=1)112C2.1(D4:2Dic7)448,89
C2.2(D4:2Dic7) = C28.57D8central extension (φ=1)224C2.2(D4:2Dic7)448,91
C2.3(D4:2Dic7) = C28.26Q16central extension (φ=1)448C2.3(D4:2Dic7)448,92
C2.4(D4:2Dic7) = (D4xC14):C4central stem extension (φ=1)112C2.4(D4:2Dic7)448,94
C2.5(D4:2Dic7) = C4:C4:Dic7central stem extension (φ=1)112C2.5(D4:2Dic7)448,95
C2.6(D4:2Dic7) = C42.7D14central stem extension (φ=1)224C2.6(D4:2Dic7)448,97
C2.7(D4:2Dic7) = C42.8D14central stem extension (φ=1)448C2.7(D4:2Dic7)448,100

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