Augmenting Edge-Connectivity over the Entire Range in Õ(nm) Time

Augmenting Edge-Connectivity over the Entire Range in Õ(nm) Time
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在 Õ(nm) 时间内增强整个范围的边缘连接

DOI:
10.1006/jagm.1998.0983
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发表时间:
1999
期刊:
J. Algorithms
影响因子:
--
通讯作者:
T. Ibaraki
T. Ibaraki
中科院分区:
--
文献类型:
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作者:
H. Nagamochi;T. Ibaraki

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对于给定的无向图G =(V,E,cG),其边用非负实G:E?R+,让?G(k)表示使G是k-边连通所需的最小权值,G *(k)是由G得到的结果图。本文首先表明,功能?整个兰盖克?0,+∞]的时间复杂度为O(nm+ n2 logn),证明了G *(k)在整个区间上都可以由O(nlogn)个加权圈得到,且这些圈的时间复杂度为O(nm+ n2 logn),其中和分别为顶点数和边数.
For a given undirected graphG=(V,E,cG) with edges weighted by nonnegative realscG:E?R+, let ?G(k) stand for the minimum amount of weights which needs to be added to makeG k-edge-connected, and letG*(k) be the resulting graph obtained fromG. This paper first shows that function ?Gover the entire rangek?0,+∞] can be computed inO(nm+n2logn) time, and then shows that allG*(k) in the entire range can be obtained fromO(nlogn) weighted cycles, and such cycles can be computed inO(nm+n2logn) time, wherenandmare the numbers of vertices and edges, respectively.
H.NAGAMOCHI、T.LBARAKI:“一种用于查找 k 连接图的稀疏 k 连接生成子图的线性时间算法”Algorithmica。
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