Timeline for Relating two characterizations of ${\mathfrak sl}_{n > 2}$ among simple Lie algebras
Current License: CC BY-SA 3.0
10 events
when toggle format | what | by | license | comment | |
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May 7, 2013 at 13:29 | vote | accept | Allen Knutson | ||
May 7, 2013 at 13:02 | answer | added | Jim Humphreys | timeline score: 5 | |
May 6, 2013 at 23:50 | answer | added | Evan Jenkins | timeline score: 7 | |
May 6, 2013 at 21:48 | comment | added | JM Landsberg | I'm not sure this will help, but 1. may be rephrased geometrically as: among all complex simple Lie algebras, sl_n, n>2, is the unique series such that the orbit of a highest weight line X in P(g) is such that the tangent space T_{Id}X is reducible (as a module for the stabilizing parabolic), and 2. may be phrased geometrically as: sl_n is the unique case where there is a G-invariant cubic hypersurface in P(g), as the form in 2. is completely symmetric. | |
May 6, 2013 at 21:38 | history | edited | Allen Knutson | CC BY-SA 3.0 |
added 89 characters in body; edited title
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May 6, 2013 at 17:15 | comment | added | Bruce Westbury | @Jim I have edited, hopefully, to what OP intended (as Terry Tao suggested). | |
May 6, 2013 at 17:13 | history | edited | Bruce Westbury | CC BY-SA 3.0 |
Changed "one" to "all but one"
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May 6, 2013 at 17:02 | comment | added | Terry Tao | Perhaps "perpendicular to" should be replaced by "perpendicular to all but"? | |
May 6, 2013 at 16:01 | comment | added | Jim Humphreys | @Allen: At first sight Theorem 1 doesn't seem to make sense as stated. Am I missing something? | |
May 6, 2013 at 15:53 | history | asked | Allen Knutson | CC BY-SA 3.0 |