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Dec 30, 2013 at 14:09 vote accept Jianrong Li
Dec 30, 2013 at 13:55 answer added Peter Crooks timeline score: 3
Dec 30, 2013 at 13:15 answer added abx timeline score: 2
Dec 30, 2013 at 12:02 comment added Peter Crooks I seem to recall having read about this somewhere in Lusztig's paper called Singularities, Character Formulas, and a q-Analog of Weight Multiplicities. You might find your answer there.
Dec 30, 2013 at 11:19 history edited Jianrong Li CC BY-SA 3.0
added 376 characters in body
Dec 30, 2013 at 11:16 comment added Jianrong Li @abx, thank you very much. I will edit.
Dec 30, 2013 at 10:40 comment added abx It seems that you have forgotten part of your text: what is $G$? What is $E$? What is $Gr_G$?
Dec 30, 2013 at 8:24 history asked Jianrong Li CC BY-SA 3.0