报告主题：基于张量谱理论的超图的Turán问题
（Hypergraph Turán problems via tensor spectral theory）
报告人：常安教授（福州大学）
报告时间：2021年8月26日（周四）19:00
参会方式：腾讯会议
会议ID：765 883 113
邀请人：康丽英
报告摘要：Turán problems of graphs or Hypergraphs are the core issue in the extremal graph theory. In this talk, we first give a brief introduction on the tensor eigenvalues and the problem on the spectral version of Turán-type problems over uniform hypergraphs. Then we develop two new tools to establish the connection between spectral radius of the adjacency tensor and structural properties of a hypergraph. By these two methods, several spectral versions of Turán-type results on linear k-uniform hypergraphs are obtained.