Timeline for inductive construction of unipotent radicals
Current License: CC BY-SA 3.0
14 events
| when toggle format | what | by | license | comment | |
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| Oct 13, 2016 at 7:59 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Sep 13, 2016 at 7:37 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Aug 14, 2016 at 4:57 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jul 15, 2016 at 4:22 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jun 15, 2016 at 3:50 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| May 16, 2016 at 3:22 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Mar 17, 2016 at 2:14 | history | edited | Jeanne Scott | CC BY-SA 3.0 |
order of the cross product
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| Mar 16, 2016 at 20:03 | answer | added | Jeanne Scott | timeline score: 1 | |
| Mar 15, 2016 at 19:13 | comment | added | Jeanne Scott | I realise this is more narrow. However, once orientations are assigned to the type $B_2$ and type $G_2$ edges the corresponding unipotent radical is well defined --- in fact it can be constructed directly by generators and relations alone without recourse to either the Lie algebra or the enveloping Kac-Moody group. best, A. Leverkühn | |
| Mar 15, 2016 at 18:55 | comment | added | Jim Humphreys | Also, your notion of "Coxeter diagram" is much more limited than the usual definition of "Coxeter graph" (or "Coxeter matrix") and creates ambiguity in passing to Lie algebras or groups: non-isomorphic ones may have isomorphic Coxeter groups attached. | |
| Mar 15, 2016 at 17:59 | history | edited | Jeanne Scott | CC BY-SA 3.0 |
orientations added
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| Mar 11, 2016 at 2:03 | history | edited | Jeanne Scott |
tags change
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| Mar 10, 2016 at 15:59 | comment | added | Jim Humphreys | The tag 'lie-groups' here seems inappropriate, since Lie groups don't in general have an intrinsic Jordan decomposition (in particular, "unipotent radical" isn't generally defined). Maybe 'kac-moody-algebras' or 'algebraic-groups'? So far there isn't a tag for Kac-Moody groups. | |
| Mar 10, 2016 at 3:27 | history | asked | Jeanne Scott | CC BY-SA 3.0 |