On the Length of a Random Minimum Spanning Tree
On the Length of a Random Minimum Spanning Tree
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关于随机最小生成树的长度
DOI:
10.1017/s0963548315000024
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
J. Spencer
中科院分区:
文献类型:
--
作者:
C. Cooper;A. Frieze;Nate Ince;S. Janson;J. Spencer
We study the expected value of the length Ln of the minimum spanning tree of the complete graph Kn when each edge e is given an independent uniform [0, 1] edge weight. We sharpen the result of Frieze [6] that limn→∞$\mathbb{E}$(Ln) = ζ(3) and show that $$
\mathbb{E}(L_n)=\zeta(3)+\frac{c_1}{n}+\frac{c_2+o(1)}{n^{4/3}},
$$ where c1, c2 are explicitly defined constants.