Timeline for What algebraic group does Tannaka-Krein reconstruct when fed the category of modules of a non-algebraic Lie algebra?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Mar 8, 2013 at 16:55 | history | edited | Daniel Miller | CC BY-SA 3.0 |
cleaned up the LaTeX
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| Jul 9, 2010 at 4:56 | vote | accept | Theo Johnson-Freyd | ||
| Apr 17, 2010 at 6:27 | history | edited | JS Milne | CC BY-SA 2.5 |
Minor fixes.
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| Apr 15, 2010 at 9:11 | comment | added | JS Milne | Thanks --- that looks like the correct way to interpret Iwahori's statements (and, yes, I should have assumed k to be algebraically closed). | |
| Apr 15, 2010 at 8:57 | comment | added | Torsten Ekedahl | Not that I disagree with the conclusion of this answer but the group scheme is $\mathrm{Spec}k[t]\times\mathrm{Spec}k[k]$ with $t\mapsto 1\otimes t+t\otimes1$ and $k[k]$ is the group algebra of the additive group k (and thus $\lambda\mapsto\lambda\otimes\lambda$). (I think that both for this and for the Lie algebra description one has to assume that $k$ is algebraically closed.) | |
| Apr 15, 2010 at 7:47 | history | answered | JS Milne | CC BY-SA 2.5 |