Extensions 1→N→G→Q→1 with N=D4 and Q=D19

Direct product G=N×Q with N=D4 and Q=D19
dρLabelID
D4×D19764+D4xD19304,31

Semidirect products G=N:Q with N=D4 and Q=D19
extensionφ:Q→Out NdρLabelID
D4⋊D19 = D4⋊D19φ: D19/C19C2 ⊆ Out D41524+D4:D19304,14
D42D19 = D42D19φ: trivial image1524-D4:2D19304,32

Non-split extensions G=N.Q with N=D4 and Q=D19
extensionφ:Q→Out NdρLabelID
D4.D19 = D4.D19φ: D19/C19C2 ⊆ Out D41524-D4.D19304,15

׿
×
𝔽