Extensions 1→N→G→Q→1 with N=C2 and Q=C7:D4

Direct product G=NxQ with N=C2 and Q=C7:D4
dρLabelID
C2xC7:D456C2xC7:D4112,36


Non-split extensions G=N.Q with N=C2 and Q=C7:D4
extensionφ:Q→Aut NdρLabelID
C2.1(C7:D4) = Dic7:C4central extension (φ=1)112C2.1(C7:D4)112,11
C2.2(C7:D4) = D14:C4central extension (φ=1)56C2.2(C7:D4)112,13
C2.3(C7:D4) = C23.D7central extension (φ=1)56C2.3(C7:D4)112,18
C2.4(C7:D4) = D4:D7central stem extension (φ=1)564+C2.4(C7:D4)112,14
C2.5(C7:D4) = D4.D7central stem extension (φ=1)564-C2.5(C7:D4)112,15
C2.6(C7:D4) = Q8:D7central stem extension (φ=1)564+C2.6(C7:D4)112,16
C2.7(C7:D4) = C7:Q16central stem extension (φ=1)1124-C2.7(C7:D4)112,17

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