Γ
G
G v
s
K 5
A 5
A 4
2
S 5
S 4
O 3
A 7
ℤ 3 : S 4
3
S 7
S 3 × S 4
ξ 1
R ( 3 2 m + 1 )
ξ 2
s o c ( G ) = P S L ( 2 , q ) , q ≡ ± 3 ( mod 8 )