讲座主题: Integer flows and modular flows of signed graphs
专家姓名:罗荣
工作单位:美国西弗吉尼亚大学
讲座时间:2018年6月18日下午2:30
讲座地点:数学院大会议室
主办单位:烟台大学数学与信息科学学院
内容摘要:
For ordinary graphs, Tutte proved that the integer flows and modular flows are equivalent. However this equivalence doesn't hold for signed graphs. In this talk, I will discuss how to convert modular flows into integer flows and present some new results on flows on signed graphs.
主讲人介绍:
罗荣,美国西弗吉尼亚大学(West Virginia University,USA)数学系教授。主要研究图的染色理论和流的理论。发表60余篇论文多数在图论顶尖杂志上,如Journal of Cominatorial Theory Ser. B, Journal of Graph Theory, SIAM Journal on Discrete Math, European J. of Combinatorics.