Timeline for Why are the following varieties symplectomorphic?
Current License: CC BY-SA 2.5
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 23, 2010 at 8:54 | answer | added | Diego Matessi | timeline score: 2 | |
| Oct 23, 2010 at 4:55 | answer | added | Allen Knutson | timeline score: 3 | |
| Oct 23, 2010 at 4:30 | vote | accept | Yuhao Huang | ||
| Oct 22, 2010 at 13:25 | comment | added | Tim Perutz | As Bruno Martelli notes, Freedman doesn't prove diffeomorphism but only homeomorphism (the exotic 4-manifolds industry is founded on this difference). Also, one can't say that abstract varieties "are symplectomorphic"; you have to specify a symplectic form. It's sufficient to pick a Kaehler class (e.g. via a very ample line bundle), since the Kaehler forms in that class are all symplectomorphic. | |
| Oct 22, 2010 at 9:36 | answer | added | David E Speyer | timeline score: 10 | |
| Oct 22, 2010 at 7:48 | answer | added | Francesco Polizzi | timeline score: 10 | |
| Oct 22, 2010 at 7:14 | answer | added | Martin O | timeline score: 5 | |
| Oct 22, 2010 at 7:00 | answer | added | Bruno Martelli | timeline score: 4 | |
| Oct 22, 2010 at 6:12 | history | asked | Yuhao Huang | CC BY-SA 2.5 |