Extensions 1→N→G→Q→1 with N=C9 and Q=D19

Direct product G=NxQ with N=C9 and Q=D19
dρLabelID
C9xD191712C9xD19342,4

Semidirect products G=N:Q with N=C9 and Q=D19
extensionφ:Q→Aut NdρLabelID
C9:D19 = D171φ: D19/C19C2 ⊆ Aut C91712+C9:D19342,5


׿
x
:
Z
F
o
wr
Q
<