| Speaker: | Zheng Hua (U of Hong Kong) |
|---|---|
| Title: | orientation data and quantization |
| Date (JST): | Mon, Jul 01, 2013, 14:00 - 17:00 |
| Place: | Seminar Room A |
| Abstract: |
In the first part of my talk, I will discuss some general questions about quantization of Donaldson-Thomas invariants from geometric point of view. A necessary condition to quantize DT invariants is to show the moduli space has a consistent choice of spin structures. This leads to a definition of orientation data (by Kontsevich and Soibelman). In the second part, I will present a proof of existence of orientation data on torsion free Calabi-Yau threefolds. |
