Go
Home
About
C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
×
⋊
.
○
≀
Extensions
1→N→G→Q→1 with N=
D
17
and Q=
D
4
Direct product G=N×Q with N=
D
17
and Q=
D
4
d
ρ
Label
ID
D
4
×D
17
68
4+
D4xD17
272,40
Non-split extensions G=N.Q with N=
D
17
and Q=
D
4
extension
φ:Q→Out N
d
ρ
Label
ID
D
17
.
1
D
4
=
C
68
⋊C
4
φ:
D
4
/
C
4
→
C
2
⊆ Out
D
17
68
4
D17.1D4
272,32
D
17
.
2
D
4
=
D
17
.D
4
φ:
D
4
/
C
2
2
→
C
2
⊆ Out
D
17
68
4+
D17.2D4
272,35
×
⋊
ℤ
𝔽
○
≀
ℚ
◁