报告题目:On list improper DP-coloring of planar graphs
报告简介:DP-coloring (also known as correspondence coloring) is a generalization of list coloring. Pongpat and Kittikorn introduce a DP-(k,d)*-coloring which is a generalization of (k,d)*-coloring. In this talk, we show the following results: (1) Every planar graph G without {4, 7}-cycles is DP-(3,1)*-colorable; (2) Every planar graph G without {4, 8}-cycles is DP-(3,1)*-colorable.
报告人:蔡红艳,贵州大学,研究方向为运筹学与控制论,主要从事图论方向研究。近年来参与国家自然科学基金3项,省自然科学基金2项。在《Discrete Applied Mathematics》、《Bulletin of the Malaysian Mathematical Sciences Society》等期刊发表多篇论文。
报告时间:2021年12月04日(星期六)上午 9:00-10:00.
报告地点:腾讯会议,ID:555 731 600
主办单位:扬州大学数学科学学院
欢迎广大师生参加!