Double centralizers of unipotent elements in simple algebraic groups, II
Event details
| Date | 25.03.2013 |
| Hour | 09:00 › 10:15 |
| Speaker | Iulian Simion [EPFL] |
| Location |
MA A3 31
|
| Category | Conferences - Seminars |
We show how the characteristic independent description of the double centralizer Z of a unipotent element u is obtained and how it can be used to determine these groups computationally. For exceptional algebraic groups we obtain complete descriptions of the double centralizer of u in bad characteristic which can be used to address related questions such as a characterizations of regular unipotent elements or the decomposition of Z into Witt groups up to isogeny.
Practical information
- Expert
- Free
Organizer
- Jacques Thévenaz
Contact
- Jacques Thévenaz