Extensions 1→N→G→Q→1 with N=C4 and Q=C9.A4

Direct product G=N×Q with N=C4 and Q=C9.A4
dρLabelID
C4×C9.A41083C4xC9.A4432,40


Non-split extensions G=N.Q with N=C4 and Q=C9.A4
extensionφ:Q→Aut NdρLabelID
C4.(C9.A4) = Q8.C54central extension (φ=1)2162C4.(C9.A4)432,42

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