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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
3
3
Direct product G=N×Q with N=
D
9
and Q=
C
3
3
d
ρ
Label
ID
D
9
×C
3
3
162
D9xC3^3
486,220
Semidirect products G=N:Q with N=
D
9
and Q=
C
3
3
extension
φ:Q→Out N
d
ρ
Label
ID
D
9
⋊C
3
3
=
C
3
2
×C
9
⋊C
6
φ:
C
3
3
/
C
3
2
→
C
3
⊆ Out
D
9
54
D9:C3^3
486,224
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⋊
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𝔽
○
≀
ℚ
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