{"title":"Finite matchability under the matroidal Hall's condition","authors":"Attila Joó","doi":"10.1016/j.jctb.2024.02.006","DOIUrl":null,"url":null,"abstract":"<div><p>Aharoni and Ziv conjectured that if <em>M</em> and <em>N</em> are finitary matroids on <em>E</em>, then a certain “Hall-like” condition is sufficient to guarantee the existence of an <em>M</em>-independent spanning set of <em>N</em>. We show that their condition ensures that every finite subset of <em>E</em> is <em>N</em>-spanned by an <em>M</em>-independent set.</p></div>","PeriodicalId":54865,"journal":{"name":"Journal of Combinatorial Theory Series B","volume":"167 ","pages":"Pages 104-118"},"PeriodicalIF":1.2000,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0095895624000121/pdfft?md5=545e85909eb190e88b95a350a595c764&pid=1-s2.0-S0095895624000121-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Combinatorial Theory Series B","FirstCategoryId":"100","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0095895624000121","RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
Abstract
Aharoni and Ziv conjectured that if M and N are finitary matroids on E, then a certain “Hall-like” condition is sufficient to guarantee the existence of an M-independent spanning set of N. We show that their condition ensures that every finite subset of E is N-spanned by an M-independent set.
期刊介绍:
The Journal of Combinatorial Theory publishes original mathematical research dealing with theoretical and physical aspects of the study of finite and discrete structures in all branches of science. Series B is concerned primarily with graph theory and matroid theory and is a valuable tool for mathematicians and computer scientists.