Timeline for Why study simplicial homotopy groups?
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 3, 2015 at 10:53 | answer | added | Stephan Zhechev | timeline score: 7 | |
| S Nov 14, 2011 at 10:23 | vote | accept | Simon Markett | ||
| S Nov 14, 2011 at 10:23 | vote | accept | Simon Markett | ||
| S Nov 14, 2011 at 10:23 | |||||
| Nov 14, 2011 at 10:23 | vote | accept | Simon Markett | ||
| S Nov 14, 2011 at 10:23 | |||||
| Nov 11, 2011 at 0:52 | comment | added | John Klein | Kan computes $\pi_3(S^2)$ via the Moore complex. It takes many pages. The idea is that a subgroup of free group (which is of course free), has a system of generators that is described by the Nielsen-Schrier theorem. | |
| Nov 10, 2011 at 19:17 | answer | added | Jacob Lurie | timeline score: 22 | |
| Nov 10, 2011 at 19:15 | answer | added | Tyler Lawson | timeline score: 32 | |
| Nov 10, 2011 at 15:27 | answer | added | Spice the Bird | timeline score: 11 | |
| Nov 10, 2011 at 15:13 | comment | added | Fernando Muro | The can also be computed as the homology of a non-abelian chain complex: the Moore complex on Kan's loop simplicial group (which is defined from the simplicial set). This works in the connected case. Otherwise groupoids are necessary. | |
| Nov 10, 2011 at 14:46 | history | asked | Simon Markett | CC BY-SA 3.0 |