Seminars on Discrete Mathematics:Subgroup perfect codes and regular sets

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:张军阳(重庆师范大学)
:2022-11-23 15:00
:腾讯会议 ID:508-573-303(无密码)

报告人:张军阳(重庆师范大学)

时  间:1123日下午15:00

地  点:腾讯会议 ID508-573-303(无密码)

内容摘要:

A subset R of the vertex set of a graph Γ is said to be (j,k)-regular if R induces a j-regular subgraph and every vertex outside of R is adjacent to exactly k vertices in R. In particular, a (j,k)-regular set is called a perfect code if (j,k)=(0,1) and a total perfect code of if (j,k)=(1,1). This talk presents some recent results (of the reporter and others) involving regular sets in Cayley graphs, and perfect codes and total perfect codes in Cayley graphs, vertex-transitive graphs and Cayley sum graphs.

人简介:

张军阳,重庆师范大学副教授。2012年博士毕业于首都师范大学,研究方向为群论与组合数学。在图的正则嵌入、图的Hamilton 圈、图上的完美码和图上的整数流等代数图论问题上做了大量工作。在European J. Combin.Electron. J. Combin.Discrete Math.等国际组合学杂志上发表了十余篇高水平论文。

 

联系人:陈继勇