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Nov 8, 2011 at 2:37 history edited S. Carnahan CC BY-SA 3.0
Cleaned up a bit.; added 3 characters in body
Nov 7, 2011 at 18:09 comment added Alexander Woo Yes many things about this are known, though it is still an active area of research. Are you looking for a reference to a book that introduces this material? If so, from the combinatorial or representation theoretic or geometric point of view? How much do you know already? Or are you asking about something specific in the theory?
Nov 7, 2011 at 15:03 comment added Zoran Skoda Could you repair your English at least roughly ? The first sentence is completely incomprehensible, not a sentence at all; besides no capital letters, no period...I can not parse this text at all.
Nov 7, 2011 at 7:35 history edited yinjing bi CC BY-SA 3.0
added 108 characters in body; deleted 2 characters in body
Nov 7, 2011 at 7:23 history asked yinjing bi CC BY-SA 3.0