Extensions 1→N→G→Q→1 with N=D4 and Q=D28

Direct product G=N×Q with N=D4 and Q=D28
dρLabelID
D4×D28112D4xD28448,1002

Semidirect products G=N:Q with N=D4 and Q=D28
extensionφ:Q→Out NdρLabelID
D41D28 = C287D8φ: D28/C28C2 ⊆ Out D4224D4:1D28448,549
D42D28 = D4⋊D28φ: D28/D14C2 ⊆ Out D4112D4:2D28448,307
D43D28 = D43D28φ: D28/D14C2 ⊆ Out D4224D4:3D28448,315
D44D28 = D44D28φ: D28/D14C2 ⊆ Out D4564+D4:4D28448,356
D45D28 = D45D28φ: trivial image112D4:5D28448,1007
D46D28 = D46D28φ: trivial image224D4:6D28448,1008

Non-split extensions G=N.Q with N=D4 and Q=D28
extensionφ:Q→Out NdρLabelID
D4.1D28 = D4.1D28φ: D28/C28C2 ⊆ Out D4224D4.1D28448,550
D4.2D28 = D4.2D28φ: D28/C28C2 ⊆ Out D4224D4.2D28448,553
D4.3D28 = D4.3D28φ: D28/C28C2 ⊆ Out D41124D4.3D28448,675
D4.4D28 = D4.4D28φ: D28/C28C2 ⊆ Out D41124+D4.4D28448,676
D4.5D28 = D4.5D28φ: D28/C28C2 ⊆ Out D42244-D4.5D28448,677
D4.6D28 = D4.6D28φ: D28/D14C2 ⊆ Out D4112D4.6D28448,310
D4.7D28 = D4.D28φ: D28/D14C2 ⊆ Out D4224D4.7D28448,317
D4.8D28 = M4(2)⋊D14φ: D28/D14C2 ⊆ Out D41124D4.8D28448,359
D4.9D28 = D4.9D28φ: D28/D14C2 ⊆ Out D41124-D4.9D28448,360
D4.10D28 = D4.10D28φ: D28/D14C2 ⊆ Out D41124D4.10D28448,361
D4.11D28 = D4.11D28φ: trivial image1124D4.11D28448,1204
D4.12D28 = D4.12D28φ: trivial image1124+D4.12D28448,1205
D4.13D28 = D4.13D28φ: trivial image2244-D4.13D28448,1206

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