Extensions 1→N→G→Q→1 with N=C2 and Q=C4:Dic9

Direct product G=NxQ with N=C2 and Q=C4:Dic9
dρLabelID
C2xC4:Dic9288C2xC4:Dic9288,135


Non-split extensions G=N.Q with N=C2 and Q=C4:Dic9
extensionφ:Q→Aut NdρLabelID
C2.1(C4:Dic9) = C36:C8central extension (φ=1)288C2.1(C4:Dic9)288,11
C2.2(C4:Dic9) = C18.C42central extension (φ=1)288C2.2(C4:Dic9)288,38
C2.3(C4:Dic9) = C72.C4central stem extension (φ=1)1442C2.3(C4:Dic9)288,20
C2.4(C4:Dic9) = C8:Dic9central stem extension (φ=1)288C2.4(C4:Dic9)288,25
C2.5(C4:Dic9) = C72:1C4central stem extension (φ=1)288C2.5(C4:Dic9)288,26

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