On spanning tree congestion

On spanning tree congestion
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关于生成树拥塞

DOI:
10.1016/j.disc.2009.01.012
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发表时间:
2009
期刊:
Discret. Math.
影响因子:
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通讯作者:
Friedrich Regen
Friedrich Regen
中科院分区:
--
文献类型:
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作者:
Christian Löwenstein;D. Rautenbach;Friedrich Regen

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我们证明每个 n 阶连通图 G 都有一个生成树 T,使得对于 T 的每条边 e,由 T−e 的两个分量的顶点集在 G 中定义的边割最多包含 n32 条边。这一结果解决了 Ostrovskii 提出的问题(M.I. Ostrovskii, Minimal Congestion trees, Discrete Math. 285 (2004) 219–226)。
We prove that every connected graph G of order n has a spanning tree T such that for every edge e of T the edge cut defined in G by the vertex sets of the two components of T−e contains at most n32edges. This result solves a problem posed by Ostrovskii (M.I. Ostrovskii, Minimal congestion trees, Discrete Math. 285 (2004) 219–226).