Speaker: Feng Rongquan, Professor, School of Mathematical Science, Peking University

Date: Mar 31, 2022

Time: 9:00-10:00 a.m.

Location: Tencent Meeting, ID: 82440992506

Sponsor: Research Center for Mathematics and Interdisciplinary Sciences, Shandong University

Research Center for Nonlinear Expectation

Abstract:

A graph is strongly regular if it is regular, and the number of common neighbours of any two distinct vertices only depends on whether they are adjacent or not. The topic of strongly regular graphs is an area where statistics, Euclidean geometry, group theory, finite geometry, and extremal combinatorics meet. The subject concerns beautifully regular structures, studied mostly using spectral methods, group theory, geometry and sometimes lattice theory. In this talk, two generalizations of strongly regular graphs, i.e., strongly `$\ell$-walk-regular graphs and directed strongly regular graphs, are introduced, and some properties and constructions of them will be given.

For more information, please visit:

https://www.view.sdu.edu.cn/info/1020/163493.htm