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C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
×
⋊
.
○
≀
Extensions
1→N→G→Q→1 with N=
C
9
and Q=
C
13
⋊C
4
Direct product G=N×Q with N=
C
9
and Q=
C
13
⋊C
4
d
ρ
Label
ID
C
9
×C
13
⋊C
4
117
4
C9xC13:C4
468,9
Semidirect products G=N:Q with N=
C
9
and Q=
C
13
⋊C
4
extension
φ:Q→Aut N
d
ρ
Label
ID
C
9
⋊(C
13
⋊C
4
) =
C
13
⋊Dic
9
φ:
C
13
⋊C
4
/
D
13
→
C
2
⊆ Aut
C
9
117
4
C9:(C13:C4)
468,10
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𝔽
○
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ℚ
◁