Timeline for Conjugacy classes in Aut(G)
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 16, 2012 at 14:14 | answer | added | Jim Humphreys | timeline score: 1 | |
| Jul 16, 2012 at 3:36 | history | edited | Yuji Tachikawa | CC BY-SA 3.0 |
changed unipotent orbits to conjugacy classes
|
| Jul 16, 2012 at 3:35 | comment | added | Yuji Tachikawa | Thank you very much for your comments. I will have a look. Let me just broadly restate the problem as the classification of the conjugacy classes ... (I'm interested in classes of elements $g$ whose square or cube is unipotent, when $g^2$ or $g^3$ is in the component connected to the identity, respectively.) | |
| Jul 15, 2012 at 19:13 | history | edited | Jim Humphreys |
edited tags
|
|
| Jul 15, 2012 at 19:11 | comment | added | Jim Humphreys | The question seems out of focus, because the outer automorphism group here is finite and has no nontrivial unipotent elements (in characteristic 0). Is there a better formulation? In any case, it may be useful to go back to the 1982 Lect. Notes in Math. 946 Classes unipotentes et sous-groupes de Borel by Nicolas Spaltenstein, where disconnected groups are emphasized and where the Lusztig-Spaltenstein duality is developed. | |
| Jul 15, 2012 at 17:00 | history | asked | Yuji Tachikawa | CC BY-SA 3.0 |