DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, Hojin | ko |
dc.contributor.author | Kwon, O-joung | ko |
dc.contributor.author | Oum, Sang-il | ko |
dc.contributor.author | Wollan, Paul | ko |
dc.date.accessioned | 2018-07-24T02:26:14Z | - |
dc.date.available | 2018-07-24T02:26:14Z | - |
dc.date.created | 2018-07-02 | - |
dc.date.created | 2018-07-02 | - |
dc.date.created | 2018-07-02 | - |
dc.date.created | 2018-07-02 | - |
dc.date.issued | 2017-08 | - |
dc.identifier.citation | Electronic Notes in Discrete Mathematics, v.61, pp.247 - 253 | - |
dc.identifier.issn | 1571-0653 | - |
dc.identifier.uri | http://hdl.handle.net/10203/244086 | - |
dc.description.abstract | A class of graphs is χ-bounded if there exists a function f:N→N such that for every graph G in the class and an induced subgraph H of G, if H has no clique of size q+1, then the chromatic number of H is less than or equal to f(q). We denote by Wn the wheel graph on n+1 vertices. We show that the class of graphs having no vertex-minor isomorphic to Wn is χ-bounded. This generalizes several previous results; χ-boundedness for circle graphs, for graphs having no W5 vertex-minors, and for graphs having no fan vertex-minors. © 2017 Elsevier B.V. | - |
dc.language | English | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Chi-boundedness of graph classes excluding wheel vertex-minors | - |
dc.type | Article | - |
dc.identifier.scopusid | 2-s2.0-85026751918 | - |
dc.type.rims | ART | - |
dc.citation.volume | 61 | - |
dc.citation.beginningpage | 247 | - |
dc.citation.endingpage | 253 | - |
dc.citation.publicationname | Electronic Notes in Discrete Mathematics | - |
dc.identifier.doi | 10.1016/j.endm.2017.06.045 | - |
dc.contributor.localauthor | Oum, Sang-il | - |
dc.contributor.nonIdAuthor | Choi, Hojin | - |
dc.contributor.nonIdAuthor | Kwon, O-joung | - |
dc.contributor.nonIdAuthor | Wollan, Paul | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Chi-bounded | - |
dc.subject.keywordAuthor | Vertex-minor | - |
dc.subject.keywordAuthor | Wheel | - |
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