Extensions 1→N→G→Q→1 with N=C18 and Q=D11

Direct product G=N×Q with N=C18 and Q=D11
dρLabelID
C18×D111982C18xD11396,7

Semidirect products G=N:Q with N=C18 and Q=D11
extensionφ:Q→Aut NdρLabelID
C18⋊D11 = D198φ: D11/C11C2 ⊆ Aut C181982+C18:D11396,9

Non-split extensions G=N.Q with N=C18 and Q=D11
extensionφ:Q→Aut NdρLabelID
C18.D11 = Dic99φ: D11/C11C2 ⊆ Aut C183962-C18.D11396,3
C18.2D11 = C9×Dic11central extension (φ=1)3962C18.2D11396,2

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