Home
About
Cn
Dn
Sn
An
Degree
Linear
Irr Reps
Characters
x
:
.
o
wr

Extensions 1→N→G→Q→1 with N=C2 and Q=D21:C4

Direct product G=NxQ with N=C2 and Q=D21:C4
dρLabelID
C2xD21:C4168C2xD21:C4336,156


Non-split extensions G=N.Q with N=C2 and Q=D21:C4
extensionφ:Q→Aut NdρLabelID
C2.1(D21:C4) = D21:C8central extension (φ=1)1684C2.1(D21:C4)336,25
C2.2(D21:C4) = Dic3xDic7central extension (φ=1)336C2.2(D21:C4)336,41
C2.3(D21:C4) = D42.C4central stem extension (φ=1)1684C2.3(D21:C4)336,28
C2.4(D21:C4) = D42:C4central stem extension (φ=1)168C2.4(D21:C4)336,44
C2.5(D21:C4) = Dic21:C4central stem extension (φ=1)336C2.5(D21:C4)336,46

׿
x
:
Z
F
o
wr
Q
<