Extensions 1→N→G→Q→1 with N=C2 and Q=C9×D9

Direct product G=N×Q with N=C2 and Q=C9×D9
dρLabelID
D9×C18362D9xC18324,61


Non-split extensions G=N.Q with N=C2 and Q=C9×D9
extensionφ:Q→Aut NdρLabelID
C2.(C9×D9) = C9×Dic9central extension (φ=1)362C2.(C9xD9)324,6

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