学术报告
Oscillatory integrals on the T-dual cycles-方博汉教授（北京大学）
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时间： 2017-05-19
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题目：Oscillatory integrals on the T-dual cycles
报告人： 方博汉教授（北京大学）
摘要：The mirror of a complete toric variety is a Landau-Ginzburg model. The oscillatory integral of the superpotential function on a Lagrangian cycle mirror to a coherent sheaf is a B-model genus 0 invariant. I will describe a way to compute it, and it is mirror to a genus 0 Gromov-Witten descendant potential with certain Gamma class of the coherent sheaf inserted. This result is related to Iritani's result identifying the integral structures on both sides. When the toric variety is P^1, this result can be extended to compute all genus descendants from Eynard-Orantin's topological recursion theory on the mirror of P^1.
时间：5月19日（周五）上午10:30-11:30
地点：首都师范大学新教二楼611教室
欢迎全体师生积极参加！
