Date: Monday, February 25, 2013
Location: 4088 East Hall (4:00 PM to 6:00 PM)
Title: On algebraic geometric construction of enumerative invariants
Abstract: For the first half of the talk we explain Li-Tian/Behrend-Fantechi's algebraic construction of virtual cycle in Gromov Witten theory, and its comparison with symplectic construction. For the second half of the talk we discuss its analogue in Landau-Ginzburg type theory, which uses Kiem-Li's cosection localization. As examples we discuss the KP4 case(Guffin-Sharpe) and the C^n case (Fan-Jarvis-Ruan).
Speaker: Huai-Liang Chang
Institution: HKUST
Event Organizer:
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