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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=
D
9
and Q=
C
2
×C
6
Direct product G=N×Q with N=
D
9
and Q=
C
2
×C
6
d
ρ
Label
ID
C
2
×C
6
×D
9
72
C2xC6xD9
216,108
Semidirect products G=N:Q with N=
D
9
and Q=
C
2
×C
6
extension
φ:Q→Out N
d
ρ
Label
ID
D
9
⋊(C
2
×C
6
) =
C
2
2
×C
9
⋊C
6
φ:
C
2
×C
6
/
C
2
2
→
C
3
⊆ Out
D
9
36
D9:(C2xC6)
216,111
×
⋊
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𝔽
○
≀
ℚ
◁