Sporadic groups
Theorem. [AFGV2, FV] Let $G$ be a sporadic simple group different from the Monster $M$. A conjugacy class in $G$ or Aut $G$ that does not appear in the Table below is of type D, hence collapses.
Remark. As for the Monster group $M$, the only conjugacy classes not known to be of type D (or not) are
32A, 32B, 41A, 46A, 46B, 47A, 47B, 59A, 59B, 69A, 69B, 71A, 71B, 87A, 87B, 92A, 92B, 94A, 94B.
The criteria of type C and F were not applied neither to these classes nor to those in the Table.
Group
|
Classes
|
Group
|
Classes
|
$T$
|
2A
|
$M_{11}$
|
8A, 8B, 11A, 11B
|
$M_{12}$
|
11A, 11B
|
$M_{22}$
|
11A, 11B
|
$M_{23}$
|
23A, 23B
|
$M_{24}$
|
23A, 23B
|
$Ru$
|
29A, 29B
|
$Suz$
|
3A
|
$HS$
|
11A, 11B
|
$McL$
|
11A, 11B
|
$Co_{1}$
|
3A
|
$Co_{2}$
|
2A, 23A, 23B
|
$Co_{3}$
|
23A, 23B
|
$J_{1}$
|
15A, 15B, 19A, 19B, 19C
|
$J_{2}$
|
2A, 3A
|
$J_{3}$
|
5A, 5B, 19A, 19B
|
$J_4$
|
29A, 43A, 43B, 43C
|
$Ly$
|
37A, 37B, 67A, 67B, 67C
|
$O'N$
|
31A, 31B
|
$Fi_{23}$
|
2A
|
$Fi_{22}$
|
2A, 22A, 22B
|
$Fi'_{24}$
|
29A, 29B
|
$B$
|
2A, 46A, 46B, 47A, 47B
|
Aut $(M_{22})$
|
2B
|
Aut $(HS)$
|
2C
|
Aut $(J_{3})$
|
34A, 34B
|
Aut $(ON)$
|
38A, 38B, 38C
|
Aut $(Fi_{24}')$
|
2C
|
Aut $(Fi_{22})$
|
2D
|
Aut $(McL)$
|
22A, 22B
|
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