中科院数学与系统科学研究院

数学研究所

学术报告

拓扑研讨班

报告人：李鹏程博士（南方科技大学）   

题  目：Suspension Homotopy of 4-manifolds And the Second 2-local Cohomotopy Sets

时  间：2022.12.07（星期三）下午14:00-15:00

地  点： 腾讯会议：6965463074

摘  要：In this talk we study the homotopy type of the (double) suspension of an orientable, closed, connected 4-manifold M, whose integral homology can have 2-torsion. Moreover, the decomposition results are applied to give a partial characterization of the second 2-local cohomotopy set of 4-manifolds.