Extensions 1→N→G→Q→1 with N=C2 and Q=D78

Direct product G=NxQ with N=C2 and Q=D78
dρLabelID
C22xD39156C2^2xD39312,60


Non-split extensions G=N.Q with N=C2 and Q=D78
extensionφ:Q→Aut NdρLabelID
C2.1D78 = C4xD39central extension (φ=1)1562C2.1D78312,38
C2.2D78 = C2xDic39central extension (φ=1)312C2.2D78312,40
C2.3D78 = Dic78central stem extension (φ=1)3122-C2.3D78312,37
C2.4D78 = D156central stem extension (φ=1)1562+C2.4D78312,39
C2.5D78 = C39:7D4central stem extension (φ=1)1562C2.5D78312,41

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