Title：On Kosniowski conjecture

Speaker：吕 志  教授 （复旦大学）

Time：2018年6月27日     下午 16:30-17:30

Room：五教  5506 

Abstract： Let M be a unitary closed manifold that admits an action of a circle preserving the unitary structure and fixing some isolated points. Kosniowski conjectured in 1980 that if M is not a boundary, then the number of isolated points is at least [dim M/4]+1. This talk will discuss different statements of Kosniowski conjecture and state some recent progresses.