Extensions 1→N→G→Q→1 with N=C9 and Q=C4

Direct product G=NxQ with N=C9 and Q=C4
dρLabelID
C36361C3636,2

Semidirect products G=N:Q with N=C9 and Q=C4
extensionφ:Q→Aut NdρLabelID
C9:C4 = Dic9φ: C4/C2C2 ⊆ Aut C9362-C9:C436,1


׿
x
:
Z
F
o
wr
Q
<