Skip to main content

Timeline for Homotopy groups of Lie groups

Current License: CC BY-SA 2.5

14 events
when toggle format what by license comment
Dec 27, 2019 at 1:47 comment added LSpice @AndréHenriques's reference, clickably: Bott - An application of the Morse theory to the topology of Lie groups (MSN), also available in ICM proceedings (MSN).
Aug 23, 2014 at 20:15 comment added André Henriques The proof of $\pi_3=\mathbb Z$ can be found in Bott's paper "An application of the Morse theory to the topology of Lie-groups" (1956).
Feb 18, 2013 at 5:19 comment added Mariano Suárez-Álvarez @Anirbit: that cannot be true, for the product of semi-simple Lie groups is semisimple,and the $\pi_3$ of a product is the product of the $\pi_3$s. It is true for simple groups, though.
Apr 12, 2011 at 20:03 answer added Enrique Macias timeline score: 2
Jun 30, 2010 at 14:47 comment added Anirbit Isn't for semi-simple Lie Groups isn't it true that $\pi_3(G)=\mathbb{Z}$? I would be happy to see explanations of this may be as a by-product of this discussion. I suppose this is important to see why the "level" of Chern-Simons theory is quantized.
Dec 15, 2009 at 18:00 answer added David Treumann timeline score: 60
Dec 15, 2009 at 16:55 vote accept Matt Noonan
Dec 15, 2009 at 15:32 answer added Allen Hatcher timeline score: 73
Dec 15, 2009 at 9:37 answer added David Bar Moshe timeline score: 25
Dec 15, 2009 at 8:46 answer added Andrew Stacey timeline score: 21
Dec 15, 2009 at 5:35 answer added Jason DeVito - on hiatus timeline score: 151
Dec 15, 2009 at 5:25 answer added José Figueroa-O'Farrill timeline score: 17
Dec 15, 2009 at 5:06 history edited Ben Webster CC BY-SA 2.5
edited title
Dec 15, 2009 at 5:04 history asked Matt Noonan CC BY-SA 2.5