Extensions 1→N→G→Q→1 with N=C2 and Q=C9:C18

Direct product G=NxQ with N=C2 and Q=C9:C18
dρLabelID
C2xC9:C18366C2xC9:C18324,64


Non-split extensions G=N.Q with N=C2 and Q=C9:C18
extensionφ:Q→Aut NdρLabelID
C2.(C9:C18) = C9:C36central extension (φ=1)366C2.(C9:C18)324,9

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