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arXiv math/0609755math.CO
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关于(n,k)-可扩图与诱导子图

On (n, k)-extendable graphs and induced subgraphs

Guizhen Liu, Qinglin Yu

摘要:

设$G$是一个顶点集为$V(G)$的图.令$n$和$k$为非负整数,使得$n + 2k \leq |V(G)| - 2$和$|V(G)| - n$为偶数。如果当删除$G$的任何$n$顶点时,剩余的子图包含$k$边的匹配并且每个$k$ -匹配可以扩展为1-因子,则$G$被称为$(n, k)-extendable graph. In this paper we present several results about $(n,k)$-extendable graphs and its subgraphs. In particular, we proved that if $ G-V(e)$ is $(n,k)$-extendable graph for each $ e \in F $ (where $ F $ is a fixed 1-factor in $ G $), then $ G $ is $(n,k)$-可扩图。

英文摘要:

Let $G$ be a graph with vertex set $V(G)$. Let $n$ and $k$ be non-negative integers such that $n + 2k \leq |V(G)| - 2$ and $|V(G)| - n$ is even. If when deleting any $n$ vertices of $G$ the remaining subgraph contains a matching of $k$ edges and every $k$-matching can be extended to a 1-factor, then $G$ is called an $(n, k)-extendable graph. In this paper we present several results about $(n, k)$-extendable graphs and its subgraphs. In particular, we proved that if $G - V(e)$ is $(n, k)$-extendable graph for each $e \in F$ (where $F$ is a fixed 1-factor in $G$), then $G$ is $(n, k)$-extendable graph.

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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