关于举行Alexander A. Ivanov教授和Elena Konstantinova教授学术报告的通知

报告题目1：Locally projective graphs

报 告 人：Prof.AlexanderA. Ivanov（ Imperial College London）

报告时间：4月13日（星期五）下午3:00-4:00

报告题目2：Integral Cayley graphs

报 告 人：Prof.Elena Konstantinova（Sobolev Institute of Mathematics）

报告时间：4月13日（星期五）下午4:10-5:10

报告地点：四号楼4318会议室

欢迎广大师生前往！

数学学院

2018年4月9日

报告1摘要：I will report on the current status of a project of building up a uniform geometrical theory which will be applicable both for the classical and sporadic simple groups including the Monster group.

报告2摘要： In the1970’s Harary and Schwenk suggested the problem of classifying integral graphs. A graph is said to be integral if all eigenvalues of the adjacency matrix are integers. Since the general problem of classifying integral graphs seems too difficult, special classes of graphs, including trees, graphs of bounded degree, regular graphs and Cayley graphs are investigated. In this talk we discuss recent progress on integral Cayley graphs.