A Note on Random Minimum Length Spanning Trees

A Note on Random Minimum Length Spanning Trees
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关于随机最小长度生成树的注记

DOI:
10.37236/1519
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发表时间:
2000
期刊:
Electron. J. Comb.
影响因子:
--
通讯作者:
L. Thoma
L. Thoma
中科院分区:
--
文献类型:
--
作者:
A. Frieze;M. Ruszinkó;L. Thoma

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相似文献

考虑一个连接的$ r $ -N $ n $ vertex图$ g $,随机独立边缘长度,每个均匀分布在$ [0,1] $上。令$ mst(g)$为最小跨树的预期长度。我们在本文中表明,如果$ g $已足够高度连接,那么最小跨越树的预期长度为$ \ sim {n \ a} \ zeta(3)$。如果我们省略了边缘连接条件,则最多是$ \ sim {n \ vos r}(\ zeta(3)+1)$。
Consider a connected $r$-regular $n$-vertex graph $G$ with random independent edge lengths, each uniformly distributed on $[0,1]$. Let $mst(G)$ be the expected length of a minimum spanning tree. We show in this paper that if $G$ is sufficiently highly edge connected then the expected length of a minimum spanning tree is $\sim {n\over r}\zeta(3)$. If we omit the edge connectivity condition, then it is at most $\sim {n\over r}(\zeta(3)+1)$.