





















A graph is {\em{$\ell$-holed}} if all of its induced cycles of length at least four have length exactly $\ell$. In the paper, we prove that if $G$ is an $\ell$-holed graph with odd $\ell\geq 7$, then $χ(G)\leq {\lceil {\ell \over {\ell-1}}ω(G) \rceil}$. This result is sharp.
此内容由惯性聚合(RSS阅读器)自动聚合整理,仅供阅读参考。 原文来自 — 版权归原作者所有。