Extensions 1→N→G→Q→1 with N=C₂×Dic₉ and Q=C₂

Direct product G=N×Q with N=C₂×Dic₉ and Q=C₂

		d	ρ	Label	ID
C₂²×Dic₉		144		C2^2xDic9	144,45

Semidirect products G=N:Q with N=C₂×Dic₉ and Q=C₂

extension	φ:Q→Out N	d	ρ	Label	ID
(C₂×Dic₉)⋊₁C₂ = D₁₈⋊C₄	φ: C₂/C₁ → C₂ ⊆ Out C₂×Dic₉	72		(C2xDic9):1C2	144,14
(C₂×Dic₉)⋊₂C₂ = C₁₈.D₄	φ: C₂/C₁ → C₂ ⊆ Out C₂×Dic₉	72		(C2xDic9):2C2	144,19
(C₂×Dic₉)⋊₃C₂ = D₄⋊₂D₉	φ: C₂/C₁ → C₂ ⊆ Out C₂×Dic₉	72	4-	(C2xDic9):3C2	144,42
(C₂×Dic₉)⋊₄C₂ = C₂×C₉⋊D₄	φ: C₂/C₁ → C₂ ⊆ Out C₂×Dic₉	72		(C2xDic9):4C2	144,46
(C₂×Dic₉)⋊₅C₂ = C₂×C₄×D₉	φ: trivial image	72		(C2xDic9):5C2	144,38

Non-split extensions G=N.Q with N=C₂×Dic₉ and Q=C₂

extension	φ:Q→Out N	d	ρ	Label	ID
(C₂×Dic₉).₁C₂ = Dic₉⋊C₄	φ: C₂/C₁ → C₂ ⊆ Out C₂×Dic₉	144		(C2xDic9).1C2	144,12
(C₂×Dic₉).₂C₂ = C₄⋊Dic₉	φ: C₂/C₁ → C₂ ⊆ Out C₂×Dic₉	144		(C2xDic9).2C2	144,13
(C₂×Dic₉).₃C₂ = C₂×Dic₁₈	φ: C₂/C₁ → C₂ ⊆ Out C₂×Dic₉	144		(C2xDic9).3C2	144,37
(C₂×Dic₉).₄C₂ = C₄×Dic₉	φ: trivial image	144		(C2xDic9).4C2	144,11

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