# 12-22【郝　峰】腾讯会议 Geometry&Topology Seminar系列讲座之043

In principle, holomorphic 1-forms of irregular smooth projective variety X encode much information of the topology and birational geometry of X. In this talk, I will first give a survey on some works and problems about how the zeros of holomorphic 1-forms affect the birational property and topology of smooth projective varieties. Then I will discuss some recent results about holomorphic 1-forms on smooth projective varieties of Kodaira codimension one ($\kappa(X)=\dim X-1$).