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arXiv 1107.4947math.CO
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关于最小度至少为3的随机图的贪心2-匹配算法和Hamilton圈

On a Greedy 2-Matching Algorithm and Hamilton Cycles in Random Graphs with Minimum Degree at Least Three

Alan Frieze

摘要:

我们描述和分析了一个简单的贪婪算法\2G\,找到一个很好的2-匹配$M$在随机图$G=G_{n,cn}^{\d\geq 3}$时,$c\geq 15$。2-匹配是最大度为2的生成子图,$G$是从顶点集为$[n]$、边集为$cn$且最小度至少为3的图中均匀地画出的.良好是指$M$具有$O(\log n)$组件。然后,我们使用这个2-匹配在$O(n^{1.5+o(1)})$时间\whp内建立一个Hamilton圈。

英文摘要:

We describe and analyse a simple greedy algorithm \2G\ that finds a good 2-matching $M$ in the random graph $G=G_{n,cn}^{\d\geq 3}$ when $c\geq 15$. A 2-matching is a spanning subgraph of maximum degree two and $G$ is drawn uniformly from graphs with vertex set $[n]$, $cn$ edges and minimum degree at least three. By good we mean that $M$ has $O(\log n)$ components. We then use this 2-matching to build a Hamilton cycle in $O(n^{1.5+o(1)})$ time \whp.

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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