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SUMMARY:Quantum cluster positivity and cohomological Donaldson-Thomas theo
 ry - Balazs Szendroi
DTSTART:20131127T141500Z
DTEND:20131127T151500Z
UID:TALK46586@talks.cam.ac.uk
CONTACT:Dr. J Ross
DESCRIPTION:I explain the cluster positivity conjecture of Fomin-Zelevinsk
 y (now a theorem of Schiffler and Lee) and its quantum version due to Bere
 nstein-Zelevinsky. I show\, following Nagao and Efinov\, how a cohomologic
 al version of Donaldson-Thomas theory enters this quantum picture. I final
 ly explain how a purity result proves a special\, and possibly the general
 \, case of the quantum cluster positivity conjecture (joint work with Davi
 son\, Maulik\, Schuermann). 
LOCATION:MR 13\, CMS
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