Extensions 1→N→G→Q→1 with N=D4 and Q=Q8

Direct product G=NxQ with N=D4 and Q=Q8
dρLabelID
D4xQ832D4xQ864,230

Semidirect products G=N:Q with N=D4 and Q=Q8
extensionφ:Q→Out NdρLabelID
D4:1Q8 = D4:Q8φ: Q8/C4C2 ⊆ Out D432D4:1Q864,155
D4:2Q8 = D4:2Q8φ: Q8/C4C2 ⊆ Out D432D4:2Q864,157
D4:3Q8 = D4:3Q8φ: trivial image32D4:3Q864,235

Non-split extensions G=N.Q with N=D4 and Q=Q8
extensionφ:Q→Out NdρLabelID
D4.Q8 = D4.Q8φ: Q8/C4C2 ⊆ Out D432D4.Q864,159

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