Extensions 1→N→G→Q→1 with N=C2 and Q=C2×C4

Direct product G=N×Q with N=C2 and Q=C2×C4
dρLabelID
C22×C416C2^2xC416,10


Non-split extensions G=N.Q with N=C2 and Q=C2×C4
extensionφ:Q→Aut NdρLabelID
C2.1(C2×C4) = C22⋊C4central stem extension (φ=1)8C2.1(C2xC4)16,3
C2.2(C2×C4) = C4⋊C4central stem extension (φ=1)16C2.2(C2xC4)16,4
C2.3(C2×C4) = M4(2)central stem extension (φ=1)82C2.3(C2xC4)16,6

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