报告题目：A 1975 conjecture of Woodall and related topics
报 告 人: 宁博（南开APP 副国际）
报告摘要：In this talk, we will give an introduction to a conjecture of Woodall in 1975，which was listed as one unsolved problem in the appendix of the classical text book ``Graph Theory with Applications by Bondy and Murty in 1976. This conjecture states that every 2-connected graph on n vertices has a cycle of length at least 2k if it has at least n/2+k vertices of degree at least k. This is joint work with Binlong Li.
报告时间: 2020年9月10日(周四) 15:30-16:30