Timeline for Dimension leaps
Current License: CC BY-SA 2.5
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 31, 2009 at 11:36 | comment | added | Daniel Moskovich | Put another way, we expect topology to be governed by algebra in dimension $n\geq 5$, but not in dimensions 3 and 4, because of the Whitney embedding theorem. | |
| Nov 13, 2009 at 17:56 | comment | added | Ryan Budney | The smooth Poincare conjecture in dimension 4 is still open so there's an argument to be made that it's the most difficult case. But I suppose you could also argue that there's been less of a systematic effort on that problem. | |
| Nov 13, 2009 at 15:52 | history | answered | Qiaochu Yuan | CC BY-SA 2.5 |