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About
C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
x
:
.
o
wr
Extensions
1→N→G→Q→1 with N=
D
15
and Q=
C
4
Direct product G=NxQ with N=
D
15
and Q=
C
4
d
ρ
Label
ID
C
4
xD
15
60
2
C4xD15
120,27
Semidirect products G=N:Q with N=
D
15
and Q=
C
4
extension
φ:Q→Out N
d
ρ
Label
ID
D
15
:C
4
=
S
3
xF
5
φ:
C
4
/
C
1
→
C
4
⊆ Out
D
15
15
8+
D15:C4
120,36
D
15
:
2
C
4
=
D
30
.C
2
φ:
C
4
/
C
2
→
C
2
⊆ Out
D
15
60
4+
D15:2C4
120,10
x
:
Z
F
o
wr
Q
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