Speaker: | Zheng Hua (Kansas State) |
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Title: | Spin structure on moduli space of sheaves on CY 3-folds |
Date (JST): | Fri, Dec 14, 2012, 15:30 - 17:00 |
Place: | Seminar Room A |
Abstract: | Konstevich and Soibelman 's orientation data is roughly speaking a consistent choice of spin structure on moduli space of sheaves on CY 3-folds. Such spin structure is necessary for defining any refined version of Donaldson-Thomas invariant. I will discuss some recent progress on this subject. |