Contact 3-manifolds and contact surgery
报告题目(Title)：Contact 3-manifolds and contact surgery
报告人(Speaker)：李友林（上海交通大学）
地点(Place)：ZOOM (663 003 0216)
时间(Time)：2020年5月8日 15:00-16:00
邀请人(Inviter)：程志云
报告摘要
Contact structures on 3-manifolds are given by a hyperplane distribution in the tangent bundle satisfying a condition called 'complete non-integrability'. Contact structures fall into one of two classes: tight or overtwisted. Ozsvath and Szabo introduced invariants of contact structures using Heegaard Floer homology. In this talk, I will survey some recent results about the tightness and contact invariants of contact 3-manifolds via contact surgery. The talk is based on joint work with Fan Ding and Zhongtao Wu.
