Extensions 1→N→G→Q→1 with N=C₂ and Q=C₂³.₉D₄

Direct product G=N×Q with N=C₂ and Q=C₂³.₉D₄

		d	ρ	Label	ID
C₂×C₂³.₉D₄		32		C2xC2^3.9D4	128,471

Non-split extensions G=N.Q with N=C₂ and Q=C₂³.₉D₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₂³.₉D₄) = C₂³.₁₉C₄²	central extension (φ=1)	64		C2.1(C2^3.9D4)	128,12
C₂.₂(C₂³.₉D₄) = C₂³.₂₁C₄²	central extension (φ=1)	32		C2.2(C2^3.9D4)	128,14
C₂.₃(C₂³.₉D₄) = C₂⁴.₄₆D₄	central stem extension (φ=1)	32		C2.3(C2^3.9D4)	128,16
C₂.₄(C₂³.₉D₄) = C₂³.₈D₈	central stem extension (φ=1)	32		C2.4(C2^3.9D4)	128,21
C₂.₅(C₂³.₉D₄) = C₂⁴.₂Q₈	central stem extension (φ=1)	32		C2.5(C2^3.9D4)	128,25
C₂.₆(C₂³.₉D₄) = C₂³.₃₀D₈	central stem extension (φ=1)	32		C2.6(C2^3.9D4)	128,26
C₂.₇(C₂³.₉D₄) = C₂⁴.₄₈D₄	central stem extension (φ=1)	32		C2.7(C2^3.9D4)	128,29
C₂.₈(C₂³.₉D₄) = C₂⁴.₃Q₈	central stem extension (φ=1)	32		C2.8(C2^3.9D4)	128,30
C₂.₉(C₂³.₉D₄) = C₂⁴.₄Q₈	central stem extension (φ=1)	16		C2.9(C2^3.9D4)	128,36
C₂.₁₀(C₂³.₉D₄) = C₂³.C₄²	central stem extension (φ=1)	32		C2.10(C2^3.9D4)	128,37
C₂.₁₁(C₂³.₉D₄) = C₂³.₈C₄²	central stem extension (φ=1)	32		C2.11(C2^3.9D4)	128,38
C₂.₁₂(C₂³.₉D₄) = C₂⁴.₅D₄	central stem extension (φ=1)	32		C2.12(C2^3.9D4)	128,122
C₂.₁₃(C₂³.₉D₄) = C₂³.₂C₄²	central stem extension (φ=1)	32	4	C2.13(C2^3.9D4)	128,123
C₂.₁₄(C₂³.₉D₄) = C₂³.₃C₄²	central stem extension (φ=1)	32	4	C2.14(C2^3.9D4)	128,124
C₂.₁₅(C₂³.₉D₄) = C₂⁴.₆D₄	central stem extension (φ=1)	32		C2.15(C2^3.9D4)	128,125
C₂.₁₆(C₂³.₉D₄) = (C₂×Q₈).Q₈	central stem extension (φ=1)	32		C2.16(C2^3.9D4)	128,126
C₂.₁₇(C₂³.₉D₄) = (C₂²×C₈)⋊C₄	central stem extension (φ=1)	32	4	C2.17(C2^3.9D4)	128,127

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