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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=
Dic
45
Direct product G=NxQ with N=
C
2
and Q=
Dic
45
d
ρ
Label
ID
C
2
xDic
45
360
C2xDic45
360,28
Non-split extensions G=N.Q with N=
C
2
and Q=
Dic
45
extension
φ:Q→Aut N
d
ρ
Label
ID
C
2
.Dic
45
=
C
45
:
3
C
8
central extension (φ=1)
360
2
C2.Dic45
360,3
x
:
Z
F
o
wr
Q
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