动力系统讨论班

题目：A theory of counting surfaces in projective varieties

报告人：蒋云峰教授（堪萨斯大学）

摘要：The theory of enumerative invariants of counting curves (Riemann surfaces) in projective varieties has been an important theory in the last decades.The enumerative invariants were motivated by theoretical physics---string theory and gauge theory, and include Gromov-Witten theory, Donaldson-Thomas theory and more recently Vafa-Witten theory.   It is hoped that there may exist a theory of counting algebraic surfaces in projective varieties. A theory of counting surface in a Calabi-Yau 4-fold has been constructed using Donaldson-Thomas theory of 4-folds.In this talk I will try to give evidences of a counting surface theory using stable maps, and explain why it is difficult to construct the counting surface invariants.  

报告时间：2024年06月27日（周四）上午10:30-11:30

报告地点：教二楼913

联系人：孙善忠