17 Sep
2015
17 Sep
'15
1:04 p.m.
[sorry for the previous spam]
="Warren D Smith" <warren.wds@gmail.com>
Here is a list of the sporadic simple groups without Outer auts: M11, M23, M24, Co1, Co2, Co3, Th, Fi23, B, M, J1, Ru, J3, Ly (source: http://brauer.maths.qmul.ac.uk/Atlas/v3/spor/)
Here is a list of the sporadic simple groups with outer auts: M12, M22, HS, J2, McL, Suz, He, HN, Fi22, Fi24', O'N, J3, T
J3 appears in both lists, but J4 in neither?