网站首页  学院概况  师资队伍  本科生教育  研究生教育  科学研究  党委专栏  学生活动 
当前位置: 网站首页 > 学术讲座 > 正文

Integral structures of quantum cohomology and HMS for toric varieties

发布时间:2018年12月05日 14:49   浏览次数:
报告人 Bohan Fang 年月 2018-12
13

报告题目: Integral structures of quantum cohomology and HMS for toric varieties

报告人: Bohan Fang

报告人单位: Peking University

报告时间: 2018年12月13日(周四) 16:00-17:00

报告地点:数学学院西303报告厅

邀请人:陈小俊

Abstract: Using recent techniques of Ganatra-Pardon-Shende, one can identify certain partially wrapped Fukaya category of a cotangent bundle with microlocal sheaves. Since vanishing thimbles of the LG mirror for a toric varieties are in this category, one may consider the integration on the thimbles by computation on the characteristic cycles. On one hand it is equal to certain g=0 1-descendant GW potential, while on the other hand it has a nice asymptotic expansion. This implies the Gamma II conjecture of Galkin-Golyshev-Iritani, which is about the integral structures of GW theory and their asymptotic expansion.

关闭

Copyright © 2018四川大学数学学院版权所有
 地址:成都市一环路南一段24号
电话:028-85412720