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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=
D
5
and Q=
D
5
Direct product G=N×Q with N=
D
5
and Q=
D
5
d
ρ
Label
ID
D
5
2
10
4+
D5^2
100,13
Non-split extensions G=N.Q with N=
D
5
and Q=
D
5
extension
φ:Q→Out N
d
ρ
Label
ID
D
5
.D
5
=
D
5
.D
5
φ:
D
5
/
C
5
→
C
2
⊆ Out
D
5
20
4
D5.D5
100,10
×
⋊
ℤ
𝔽
○
≀
ℚ
◁