Timeline for Almost parallelizable 4-manifolds
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 2, 2013 at 7:26 | vote | accept | Julia | ||
| Jan 1, 2013 at 21:31 | comment | added | Tom Goodwillie | Or note that $H^4(X-\star)$ is trivial, so that the next obstruction isn't there. | |
| Jan 1, 2013 at 17:54 | comment | added | Dylan Thurston | You can take a CW-complex with only a single 4-cell, for instance. | |
| Jan 1, 2013 at 16:07 | comment | added | Julia | I understand this argument. However, the 3-skeleton is not homotopy equivalent to the punctured manifold (to get this, wouldn't you have to puncture the manifold in the interior of each 4-simplex?). Why does this imply the result I want? Thanks! | |
| Jan 1, 2013 at 16:06 | vote | accept | Julia | ||
| Jan 1, 2013 at 16:06 | |||||
| Jan 1, 2013 at 11:28 | history | answered | Johannes Nordström | CC BY-SA 3.0 |