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arXiv 0904.1296cs.DM
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关于无桥三次图的完美匹配指数

On the perfect matching index of bridgeless cubic graphs

Jean-Luc Fouquet, Jean-Marie Vanherpe

摘要:

如果$G$是一个无桥三次图,Fulkerson猜测我们可以找到$G$的6个完美匹配$M_1,...,M_6$,并且具有这样的性质:$G$的每条边恰好包含在其中的两个中,Berge猜测它的边集可以被5个完美匹配覆盖。我们定义$τ(G)$作为最少的完美匹配允许覆盖的边缘集的无桥三次图,我们研究这个参数。完美匹配指数为4的图的集合似乎很有趣,我们给出了这类图的一些信息。

英文摘要:

If $G$ is a bridgeless cubic graph, Fulkerson conjectured that we can find 6 perfect matchings $M_1,...,M_6$ of $G$ with the property that every edge of $G$ is contained in exactly two of them and Berge conjectured that its edge set can be covered by 5 perfect matchings. We define $τ(G)$ as the least number of perfect matchings allowing to cover the edge set of a bridgeless cubic graph and we study this parameter. The set of graphs with perfect matching index 4 seems interesting and we give some informations on this class.

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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