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C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
×
⋊
.
○
≀
Extensions
1→N→G→Q→1 with N=
C
2
and Q=
C
3
2
⋊D
9
Direct product G=N×Q with N=
C
2
and Q=
C
3
2
⋊D
9
d
ρ
Label
ID
C
2
×C
3
2
⋊D
9
54
C2xC3^2:D9
324,63
Non-split extensions G=N.Q with N=
C
2
and Q=
C
3
2
⋊D
9
extension
φ:Q→Aut N
d
ρ
Label
ID
C
2
.(C
3
2
⋊D
9
) =
C
3
2
⋊Dic
9
central extension (φ=1)
108
C2.(C3^2:D9)
324,8
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ℚ
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