杜少飞教授学术报告:Arc-Transitive Covers of Graphs

发布时间:2024-01-15 浏览次数:32

报告时间:2024年1月18日8:30-10:30

报告地点:育才校区广西应用数学中心(广西师范大学)

报告摘要:A cover X of a given graph Y is an homomorphism from X to Y, locally it is a bijection. This is one of fundamental and important concepts in topological graph theory. Another motivation for us to study covers might be from classifications of finite arc-transitive graphs, mainly 2-arc-transitive graphs. In this talk, I shall show that why we study covers, how to construct covers, what is the advantages of covering graphs, comparing with other representations of graphs (for instance, coset graphs), and how to recognize the symmetric properties from the covers. In particular, by exhibiting some examples I try to show you the relationships between construction of covers and group extension theory, group representation theory and topological graph theory.

报告人简介:

杜少飞,首都师范大学教授、博士生导师,是代数组合领域的著名专家。1996年获北京大学博士学位,1998年到首都师范大学工作,1999年晋升教授,2002年担任博士生导师。主要研究领域为有限群论以及图、地图等组合结构的对称性研究。现任国际期刊 Journal of Algebraic Combinatorics(SCI)和Ars Mathematica Contemporanea(SCI)的编委;到目前为止在Journal of Combinatorial Theory Series A及B, Combinatorica,Journal of Algebra等国际权威杂志上发表论文60余篇;先后主持16项包括国家自然科学基金面上项目、教育部重点项目、国际合作项目等在内的科研课题。