Timeline for Levi decomposition in disconnected linear algebraic group (characteristic 0)?
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| Jun 10, 2013 at 16:10 | comment | added | Jim Humphreys | Thanks for the detail. I'll look further into both Demazure-Gabriel and Jantzen (who based his foundations on D-G but then emphasized prime characteristic). The connected case struck me as fairly elementary, modulo Lie algebra theory in characteristic 0, but dealing with a finite component group seems to require a different level of prerequisites. (By the way, I assumed the field to be algebraically closed, to avoid getting into questions about splitting fields, etc. I'm not sure what the most natural set-up is.) | |
| Jun 10, 2013 at 10:32 | history | edited | user28172 | CC BY-SA 3.0 |
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| Jun 10, 2013 at 10:25 | history | edited | user28172 | CC BY-SA 3.0 |
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| Jun 10, 2013 at 6:15 | history | edited | user28172 | CC BY-SA 3.0 |
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| Jun 10, 2013 at 1:23 | history | answered | user28172 | CC BY-SA 3.0 |