Timeline for A Criterion for Reductivity of Lie Subgroups
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Mar 14, 2013 at 14:45 | comment | added | Peter Crooks | Your answer is excellent and much appreciated. The references are fantastic! | |
| Mar 13, 2013 at 22:27 | history | edited | Jim Humphreys | CC BY-SA 3.0 |
added 910 characters in body
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| Mar 13, 2013 at 17:47 | comment | added | Peter Crooks | For instance, is there a splitting of the short-exact sequence $$1\rightarrow H_0\rightarrow H\rightarrow\pi_0(H)\rightarrow 1?$$ | |
| Mar 13, 2013 at 17:42 | comment | added | Peter Crooks | (I am not assuming $H$ to be connected.) | |
| Mar 13, 2013 at 17:38 | comment | added | Peter Crooks | The Lie algebra of my subgroup $H$ is decidedly reductive but not necessarily semisimple. Is there some result I might invoke concerning the "closeness" of $H$ to being reductive? Is it a quotient/central extension, etc. of something reductive? | |
| Mar 13, 2013 at 15:53 | vote | accept | Peter Crooks | ||
| Mar 13, 2013 at 15:47 | history | answered | Jim Humphreys | CC BY-SA 3.0 |