Ju l 2 01 7 On rank-width of ( diamond , even hole )-free graphs
Ju l 2 01 7 On rank-width of ( diamond , even hole )-free graphs
复制标题
Jul l 2 01 7 关于(菱形,偶孔)无图的等级宽度
DOI:
--
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Kristina Vuskovic
中科院分区:
文献类型:
--
作者:
Isolde Adler;N. Le;H. Müller;M. Radovanović;Nicolas Trotignon;Kristina Vuskovic
We present a class of (diamond, even hole)-free graphs with no clique cutset that has unbounded rank-width. In general, even-hole-free graphs have unbounded rank-width, because chordal graphs are even-hole-free. A.A. da Silva, A. Silva and C. Linhares-Sales (2010) showed that planar even-hole-free graphs have bounded rank-width, and N.K. Le (2016) showed that evenhole-free graphs with no star cutset have bounded rank-width. A natural question is to ask, whether even-hole-free graphs with no clique cutsets have bounded rank-width. Our result gives a negative answer. Hence we cannot apply the meta-theorem by Courcelle, Makowsky and Rotics, which would provide efficient algorithms for a large number of problems, including the maximum independent set problem, whose complexity remains open for (diamond, even hole)-free graphs.
DOI:
10.1016/j.jctb.2012.10.001
发表时间:
2013
期刊:
Journal of Combinatorial Theory, Series B
影响因子:
--
作者:
Da Silva M
通讯作者:
Da Silva M
DOI:
10.48550/arxiv.1205.2535
发表时间:
2012
期刊:
--
影响因子:
--
作者:
Aboulker P
通讯作者:
Aboulker P