arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1507.07066math.CO
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路径因子涉及七阶和九阶路径

Path-factors involving paths of order seven and nine

Yoshimi Egawa, Michitaka Furuya

摘要:

本文证明了以下两个定理(这里$c_{i}(G-X)$是具有$|V(C)|=i$的$G-X$的分支数$C$):(i)如果图$G$对所有$X\subseteq V(G)$都满足$c_{1}(G-X)+\frac{1}{3}c_{3}(G-X)+\frac{1}{3}c_{5}(G-X)\leq \frac{2}{3}|X|$,则$G$有一个$\{P_{2},P_{7}\}$ -因子。(ii)~如果图$G$对所有$X\subseteq V(G)$都满足$c_{1}(G-X)+c_{3}(G-X)+\frac{2}{3}c_{5}(G-X)+\frac{1}{3}c_{7}(G-X)\leq \frac{2}{3}|X|$,则$G$有一个$\{P_{2},P_{9}\}$ -因子。

英文摘要:

In this paper, we show the following two theorems (here $c_{i}(G-X)$ is the number of components $C$ of $G-X$ with $|V(C)|=i$): (i)~If a graph $G$ satisfies $c_{1}(G-X)+\frac{1}{3}c_{3}(G-X)+\frac{1}{3}c_{5}(G-X)\leq \frac{2}{3}|X|$ for all $X\subseteq V(G)$, then $G$ has a $\{P_{2},P_{7}\}$-factor. (ii)~If a graph $G$ satisfies $c_{1}(G-X)+c_{3}(G-X)+\frac{2}{3}c_{5}(G-X)+\frac{1}{3}c_{7}(G-X)\leq \frac{2}{3}|X|$ for all $X\subseteq V(G)$, then $G$ has a $\{P_{2},P_{9}\}$-factor.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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