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C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
x
:
.
o
wr
Extensions
1→N→G→Q→1 with N=
C
2
and Q=
D
11
Direct product G=NxQ with N=
C
2
and Q=
D
11
d
ρ
Label
ID
D
22
22
2+
D22
44,3
Non-split extensions G=N.Q with N=
C
2
and Q=
D
11
extension
φ:Q→Aut N
d
ρ
Label
ID
C
2
.D
11
=
Dic
11
central extension (φ=1)
44
2-
C2.D11
44,1
x
:
Z
F
o
wr
Q
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