Events

2.23

15:00-17:00

Event Details:

Title:Lecture by Junwu Tu: Hodge structures and enumerative invariants of Calabi-Yau categories

Location:lecture hall

Time:Feb 23,15:00-17:00

Speaker:涂君武(上海科技大学)


Abstract:We shall review Costello’s definition of Gromov-Witten type invariants in all genus associated with Calabi-Yau A-infinity categories. Then we write down an explicit formula of these invariants in terms of certain stable graphs whose vertices are decorated by ribbon graphs. We give a survey of known calculations of CEI (categorical enumerative invariants). We also report on some of the recent progresses (joint works with Lino Amorim, and Yefeng Shen) in this direction.


Contact:Yongbin Ruan(ruanyb@zju.edu.cn)


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