报告人:颜谨教授(山东大学)
报告主题:Cycles and partial degrees in (directed) graphs
报告时间:2021年12月10日 09:00-12:00
报告地点:腾讯会议 367 314 413
报告摘要:
Let be a graph and . We define the minimum partial degree to be the minimum degree of in . Bollobs investigated firstly the partial degree for cycles which is a generalization of Dirac Theorem. This talk will present some results on degree and partial degree conditions that guarantee the existence of cycles with prescribed properties in graphs and directed graphs.
报告人简介:
颜谨:山东大学数学学院教授,博士研究生导师,中国运筹学会图论组合分会常务理事。研究方向为图论及其应用,发表学术论文70余篇,文章发表在SIAM J. Discrete Math.,J. Graph Theory, European J. Combinatorics 等;主持多项国家自然科学基金项目及省部级基金项目。现阶段主要研究图与有向图的圈问题、子图问题及划分问题。