Timeline for HIgher Homotopy Groups and Representation Theory
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 19, 2013 at 1:22 | comment | added | Theo Johnson-Freyd | Well, I mean, there are many applications of the general statement that $\pi_2$ is trivial. But for no $G$ can elements of $\pi_2(G)$ be applied to some particular construction, the way that $\pi_1$ or $\pi_3$ can. | |
| Apr 18, 2013 at 4:35 | comment | added | Qiaochu Yuan | No applications? Isn't $\pi_2$ being trivial related to the Whitehead lemma? | |
| Apr 18, 2013 at 4:00 | history | answered | Theo Johnson-Freyd | CC BY-SA 3.0 |