Optimal randomized EREW PRAM algorithms for finding spanning forests and for other basic graph connectivity problems
Optimal randomized EREW PRAM algorithms for finding spanning forests and for other basic graph connectivity problems
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用于查找生成森林和其他基本图连接问题的最佳随机 EREW PRAM 算法
DOI:
10.1006/jagm.2000.1146
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发表时间:
1996
期刊:
影响因子:
--
通讯作者:
Uri Zwick
中科院分区:
文献类型:
--
作者:
S. Halperin;Uri Zwick
We present the first randomized O(logn) time and O(m+n) work EREW PRAM algorithm for finding a spanning forest of an undirected graph G=(V,E) with n vertices and m edges. Our algorithm is optimal with respect to time, work, and space. As a consequence we get optimal randomized EREW PRAM algorithms for other basic connectivity problems such as finding a bipartite partition, finding bridges and biconnected components, finding Euler tours in Eulerian graphs, finding an ear decomposition, finding an open ear decomposition, finding a strong orientation, and finding an st-numbering.