Academy of Mathematics and Systems Science, CAS
Colloquia & Seminars

Speaker:	陈旭佳博士, 哈佛大学
Inviter:
Title:	Open Gromov-Witten theory and bounding chains
Language:	Chinese
Time & Venue:	2023.09.11 09:00-10:00 Zoom会议：857 9156 8842 密码：0911
Abstract:	Gromov-Witten invariants count “closed” J-holomorphic curves—closed surfaces, e.g. spheres, tori. Open Gromov-Witten invariants, on the other hand, count “open” J-holomorphic curves---surfaces with boundary, e.g., disks, annuli. Unlike their “closed” counterpart, open Gromov-Witten invariants are often not well-defined. One beautiful way of defining them, due to Fukaya-Oh-Ohta-Ono, is “bounding chains”. I will give an introduction to open Gromov-Witten invariants, bounding chains, and my work that says two seemingly-unrelated definition of open Fromov-Witten invariants are actually the same when they are both defined.