{"title":"The Existence of a Path with Two Blocks in Digraphs","authors":"Amine El Sahili, Maidoun Mortada, Sara Nasser","doi":"10.1007/s00373-024-02759-8","DOIUrl":null,"url":null,"abstract":"<p>We give a new elementary proof of El Sahili conjecture El Sahili (Discrete Math 287:151–153, 2004) stating that any <i>n</i>-chromatic digraph <i>D</i>, with <span>\\(n\\ge 4\\)</span>, contains a path with two blocks of order <i>n</i>.</p>","PeriodicalId":0,"journal":{"name":"","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1007/s00373-024-02759-8","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We give a new elementary proof of El Sahili conjecture El Sahili (Discrete Math 287:151–153, 2004) stating that any n-chromatic digraph D, with \(n\ge 4\), contains a path with two blocks of order n.
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