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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
11
and Q=
D
9
Direct product G=N×Q with N=
C
11
and Q=
D
9
d
ρ
Label
ID
C
11
×D
9
99
2
C11xD9
198,1
Semidirect products G=N:Q with N=
C
11
and Q=
D
9
extension
φ:Q→Aut N
d
ρ
Label
ID
C
11
⋊D
9
=
D
99
φ:
D
9
/
C
9
→
C
2
⊆ Aut
C
11
99
2+
C11:D9
198,3
×
⋊
ℤ
𝔽
○
≀
ℚ
◁