报告题目：Direct product of signed graphs

报告简介：In 1953, signed graphs as a model for social networks were introduced by F. Harary. A signed graph is a graph together with an assignment of signs to the edges. In 2011, K.A.Germina et al defined the direct product of signed graph, products of graphs are a fundamental construction in graph theory. In this talk, we introduce the direct product of signed graphs, especially the factors, switching isomorphism and chromatic number on direct product of signed graphs.

报告人：文超，贵州大学博士，主要从事代数与图论研究。在国际核心期刊《Discrete Applied Mathematics》《 Discrete Mathematics》发表论文。

报告时间：2021年11月29日（星期一）下午 7:30-8:30.

报告地点：腾讯会议，ID：475 363 406

主办单位：扬州大学数学科学学院

欢迎广大师生参加！