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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=
C
2
xC
110
Direct product G=NxQ with N=
C
2
and Q=
C
2
xC
110
d
ρ
Label
ID
C
2
2
xC
110
440
C2^2xC110
440,51
Non-split extensions G=N.Q with N=
C
2
and Q=
C
2
xC
110
extension
φ:Q→Aut N
d
ρ
Label
ID
C
2
.
1
(C
2
xC
110
) =
D
4
xC
55
central stem extension (φ=1)
220
2
C2.1(C2xC110)
440,40
C
2
.
2
(C
2
xC
110
) =
Q
8
xC
55
central stem extension (φ=1)
440
2
C2.2(C2xC110)
440,41
x
:
Z
F
o
wr
Q
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