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arXiv 1606.01586math.CO
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给定度的稀疏图的平均生成树数

The average number of spanning trees in sparse graphs with given degrees

Catherine Greenhill, Mikhail Isaev, Matthew Kwan, Brendan D. McKay

摘要:

给出了具有给定度序列$\boldsymbol{d}=(d_1,\ldots, d_n)$的随机图的期望生成树数的渐近表达式,其中$d_{\max}$为最大度,且其边数至少为$n + \textstyle{\frac{1}{2}} d_{\max}^4$.我们的论点的一个关键部分涉及到建立一个浓度的结果,为一定的家庭的功能在随机树与给定的程度,使用Prüfer码。

英文摘要:

We give an asymptotic expression for the expected number of spanning trees in a random graph with a given degree sequence $\boldsymbol{d}=(d_1,\ldots, d_n)$, provided that the number of edges is at least $n + \textstyle{\frac{1}{2}} d_{\max}^4$, where $d_{\max}$ is the maximum degree. A key part of our argument involves establishing a concentration result for a certain family of functions over random trees with given degrees, using Prüfer codes.

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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