Timeline for From Weyl groups to Weyl groupoids?

Current License: CC BY-SA 3.0

14 events

when toggle format	what		by	license	comment
May 1, 2016 at 20:36	vote	accept	Saal Hardali
May 1, 2016 at 19:56	comment	added	Uri Bader		@SaalHardali I made a major edition in order to make the "choice free construction" clear. I decided to neglect your wish for "categorfication" as the natural setting, I find, is simply to consider $G$-equivariant objects.
May 1, 2016 at 19:51	history	edited	Uri Bader	CC BY-SA 3.0	added 438 characters in body
May 1, 2016 at 9:05	history	edited	Uri Bader	CC BY-SA 3.0	added 94 characters in body
May 1, 2016 at 6:51	comment	added	Saal Hardali		@user89334 your edit is very helpful thanks!
Apr 30, 2016 at 21:36	history	edited	Uri Bader	CC BY-SA 3.0	added 42 characters in body
Apr 30, 2016 at 21:30	history	edited	Uri Bader	CC BY-SA 3.0	added 42 characters in body
Apr 30, 2016 at 20:59	history	edited	Uri Bader	CC BY-SA 3.0	added 696 characters in body
Apr 30, 2016 at 20:16	history	edited	Uri Bader	CC BY-SA 3.0	added 2 characters in body
Apr 30, 2016 at 19:54	comment	added	Uri Bader		@Ben Webster, thanks, definition corrected. Really I have in mind the variety of centralizer of max tori in $G$ where $G$ is connected, hence the mistake.
Apr 30, 2016 at 19:51	history	edited	Uri Bader	CC BY-SA 3.0	added 35 characters in body
Apr 30, 2016 at 19:27	comment	added	LSpice		(Deleted a foolish comment: I misread and thought that $C$ was a particular Cartan, rather than the variety of all of them.)
Apr 30, 2016 at 18:53	comment	added	Ben Webster♦		The isotropy group of a Cartan in your groupoid is not the Weyl group; you also get elements coming from diagram automorphisms. For $\mathfrak{sl}(n)$, minus transpose is an algebra automorphism preserving the usual Cartan, but doesn't come from an element of the Weyl group.
Apr 30, 2016 at 18:20	history	answered	Uri Bader	CC BY-SA 3.0