On claw-free asteroidal triple-free graphs
On claw-free asteroidal triple-free graphs
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关于无爪小行星三自由图
DOI:
10.1016/s0166-218x(01)00208-6
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
D. Kratsch
中科院分区:
文献类型:
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作者:
Harald Hempel;D. Kratsch
We present an O(n2.376) algorithm for recognizing claw-free AT-free graphs and a linear-time algorithm for computing the set of all central vertices of a claw-free AT-free graph. In addition, we give efficient algorithms that solve the problems INDEPENDENT SET, DOMINATING SET, and COLORING. We argue that all running times achieved are optimal unless better algorithms for a number of famous graph problems such as triangle recognition and bipartite matching have been found. Our algorithms exploit the structure of 2LexBFS schemes of claw-free AT-free graphs.