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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
5
and Q=
C
5
xA
4
Direct product G=NxQ with N=
C
5
and Q=
C
5
xA
4
d
ρ
Label
ID
A
4
xC
5
2
100
A4xC5^2
300,42
Non-split extensions G=N.Q with N=
C
5
and Q=
C
5
xA
4
extension
φ:Q→Aut N
d
ρ
Label
ID
C
5
.(C
5
xA
4
) =
A
4
xC
25
central extension (φ=1)
100
3
C5.(C5xA4)
300,8
x
:
Z
F
o
wr
Q
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