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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