Timeline for Under what hypotheses are schematic fixed points of a flat deformation themselves flat?
Current License: CC BY-SA 2.5
8 events
| when toggle format | what | by | license | comment | |
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| Oct 26, 2010 at 0:31 | comment | added | Allen Knutson | I prefer to think of the map in the variant as $\det: M_{2\times 2} \to {\mathbb A}^1$. | |
| Oct 25, 2010 at 21:22 | vote | accept | Ben Webster♦ | ||
| Oct 25, 2010 at 21:19 | comment | added | Angelo | Dear Ben, I believe that the modified version above should satisfy your conditions. | |
| Oct 25, 2010 at 21:15 | history | edited | Angelo | CC BY-SA 2.5 |
added 205 characters in body; edited body
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| Oct 25, 2010 at 19:34 | comment | added | Ben Webster♦ | While this is an interesting example, it doesn't actually answer my question; the fiber at the origin doesn't have rational singularities, since its normalization is disconnected. | |
| Oct 25, 2010 at 16:09 | comment | added | Angelo | To Allen: nice statement, though! | |
| Oct 25, 2010 at 14:30 | comment | added | Allen Knutson | I had the exact same counterexample typed up and was about to submit! The only remaining value added was the statement "Degeneration can produce new fixed points." | |
| Oct 25, 2010 at 14:25 | history | answered | Angelo | CC BY-SA 2.5 |