Hardness results and approximation algorithms for (weighted) paired-domination in graphs
Hardness results and approximation algorithms for (weighted) paired-domination in graphs
复制标题
图中(加权)配对支配的硬度结果和近似算法
DOI:
10.1016/j.tcs.2009.08.004
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发表时间:
2009-11
影响因子:
1.1
通讯作者:
Chen, Lei
中科院分区:
文献类型:
--
作者:
Zeng, Zhenbing;Lu, Changhong;Chen, Lei
Let G=(V,E) be a simple graph without isolated vertices. A vertex set S⊆V is a paired-dominating set if every vertex in V−S has a neighbor in S and the induced subgraph G[S] has a perfect matching. In this paper, we investigate the approximation hardness of paired-domination in graphs. For weighted paired-domination, an approximation algorithm in general graphs and an exact dynamic programming style algorithm in trees are also given.
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