Go
Home
About
C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
×
⋊
.
○
≀
Extensions
1→N→G→Q→1 with N=
C
2
2
and Q=
C
20
Direct product G=N×Q with N=
C
2
2
and Q=
C
20
d
ρ
Label
ID
C
2
2
×C
20
80
C2^2xC20
80,45
Semidirect products G=N:Q with N=
C
2
2
and Q=
C
20
extension
φ:Q→Aut N
d
ρ
Label
ID
C
2
2
⋊C
20
=
C
5
×C
2
2
⋊C
4
φ:
C
20
/
C
10
→
C
2
⊆ Aut
C
2
2
40
C2^2:C20
80,21
Non-split extensions G=N.Q with N=
C
2
2
and Q=
C
20
extension
φ:Q→Aut N
d
ρ
Label
ID
C
2
2
.C
20
=
C
5
×M
4
(2)
φ:
C
20
/
C
10
→
C
2
⊆ Aut
C
2
2
40
2
C2^2.C20
80,24
×
⋊
ℤ
𝔽
○
≀
ℚ
◁