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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=
Q
8
Direct product G=N×Q with N=
C
2
and Q=
Q
8
d
ρ
Label
ID
C
2
×Q
8
16
C2xQ8
16,12
Non-split extensions G=N.Q with N=
C
2
and Q=
Q
8
extension
φ:Q→Aut N
d
ρ
Label
ID
C
2
.Q
8
=
C
4
⋊C
4
central extension (φ=1)
16
C2.Q8
16,4
×
⋊
ℤ
𝔽
○
≀
ℚ
◁