Timeline for Computing fundamental groups and singular cohomology of projective varieties
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 12, 2010 at 17:11 | comment | added | Kevin H. Lin | Yeah, ok, that's what I was thinking. What's an "affine space" then? Oh -- I guess you just mean A^n? Silly me. | |
| Feb 12, 2010 at 16:46 | comment | added | Emerton | Affine varieties are typically not contractible, e.g. a punctured positive genus curve. Affine spaces (as in Dustin's example) are contractible. | |
| Feb 12, 2010 at 16:33 | comment | added | Kevin H. Lin | Cool. That seems like it should work, though I should think about it some more to really convince myself. Question: are all affine varieties really contractible? I guess it'd be a similar argument...? | |
| Feb 12, 2010 at 15:04 | history | answered | Dustin Clausen | CC BY-SA 2.5 |