报告题目:Partitions of multigraphs under degree constraints
报 告 人:许宝刚教授(南京师范大学)
报告时间:2019年5月18日 9:00-10:00
报告地点:数计院307
报告摘要:
Let $s$ and $t$ be two nonnegative integers. In 1996, Stiebitz confirmed a conjecture of Thomassen and showed that for every graph $G$ with $\delta(G)\ge s+t+1$ admits a bipartition $(A, B)$ such that $\delta(G[A])\ge s$ and $\delta(G[B])\ge t$. Then, some Stiebitz's type bound appear on special families of graphs. Very recently, Schweser and Stiebitz studied the analogous problem on multigraphs (which may have parallel edges), and generalize some earlier results from simple graphs to multigraphs. We will briefly introduce the history, recent progress and still open problem on this topic.
报告人简介:
许宝刚,博士,南京
学校首页
设为收藏