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
21
and Q=
C
8
Direct product G=N×Q with N=
D
21
and Q=
C
8
d
ρ
Label
ID
C
8
×D
21
168
2
C8xD21
336,90
Semidirect products G=N:Q with N=
D
21
and Q=
C
8
extension
φ:Q→Out N
d
ρ
Label
ID
D
21
⋊C
8
=
D
21
⋊C
8
φ:
C
8
/
C
4
→
C
2
⊆ Out
D
21
168
4
D21:C8
336,25
×
⋊
ℤ
𝔽
○
≀
ℚ
◁