Extensions 1→N→G→Q→1 with N=D19 and Q=A4

Direct product G=NxQ with N=D19 and Q=A4
dρLabelID
A4xD19766+A4xD19456,45

Semidirect products G=N:Q with N=D19 and Q=A4
extensionφ:Q→Out NdρLabelID
D19:A4 = D19:A4φ: A4/C22C3 ⊆ Out D19766+D19:A4456,46


׿
x
:
Z
F
o
wr
Q
<