Ore-type condition for Hamilton ℓ-cycle in k-uniform hypergraphs

IF 1 3区 数学 Q3 MATHEMATICS, APPLIED
Taijiang Jiang , Qiang Sun , Chao Zhang
{"title":"Ore-type condition for Hamilton ℓ-cycle in k-uniform hypergraphs","authors":"Taijiang Jiang ,&nbsp;Qiang Sun ,&nbsp;Chao Zhang","doi":"10.1016/j.dam.2025.04.036","DOIUrl":null,"url":null,"abstract":"<div><div>The classic Ore theorem states that if the degree sum of any two non-adjacent vertices in an <span><math><mi>n</mi></math></span>-vertex graph is at least <span><math><mi>n</mi></math></span>, then the graph contains a Hamilton cycle. Tang and Yan extended this result to hypergraphs in 2017 and obtained an Ore-type condition for the existence of tight Hamilton cycles. In this paper, we consider the Ore-type sufficient condition for the existence of Hamilton <span><math><mi>ℓ</mi></math></span>-cycles. Our main result is that for <span><math><mrow><mi>k</mi><mo>≥</mo><mn>3</mn></mrow></math></span>, <span><math><mrow><mn>1</mn><mo>≤</mo><mi>ℓ</mi><mo>&lt;</mo><mi>k</mi><mo>/</mo><mn>2</mn></mrow></math></span>, <span><math><mrow><mi>γ</mi><mo>&gt;</mo><mn>0</mn></mrow></math></span> and for sufficiently large <span><math><mi>n</mi></math></span> with <span><math><mrow><mi>n</mi><mo>∈</mo><mrow><mo>(</mo><mi>k</mi><mo>−</mo><mi>ℓ</mi><mo>)</mo></mrow><mi>N</mi></mrow></math></span>, every <span><math><mi>k</mi></math></span>-uniform hypergraph <span><math><mrow><mi>H</mi><mo>=</mo><mrow><mo>(</mo><mi>V</mi><mo>,</mo><mi>E</mi><mo>)</mo></mrow></mrow></math></span> on <span><math><mi>n</mi></math></span> vertices with the degree sum of any two weakly independent sets at least <span><math><mrow><mrow><mo>(</mo><mfrac><mrow><mn>3</mn></mrow><mrow><mn>2</mn><mrow><mo>(</mo><mi>k</mi><mo>−</mo><mi>ℓ</mi><mo>)</mo></mrow></mrow></mfrac><mo>+</mo><mi>γ</mi><mo>)</mo></mrow><mi>n</mi></mrow></math></span> contains a Hamilton <span><math><mi>ℓ</mi></math></span>-cycle.</div></div>","PeriodicalId":50573,"journal":{"name":"Discrete Applied Mathematics","volume":"371 ","pages":"Pages 270-275"},"PeriodicalIF":1.0000,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Discrete Applied Mathematics","FirstCategoryId":"100","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0166218X25002033","RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATHEMATICS, APPLIED","Score":null,"Total":0}
引用次数: 0

Abstract

The classic Ore theorem states that if the degree sum of any two non-adjacent vertices in an n-vertex graph is at least n, then the graph contains a Hamilton cycle. Tang and Yan extended this result to hypergraphs in 2017 and obtained an Ore-type condition for the existence of tight Hamilton cycles. In this paper, we consider the Ore-type sufficient condition for the existence of Hamilton -cycles. Our main result is that for k3, 1<k/2, γ>0 and for sufficiently large n with n(k)N, every k-uniform hypergraph H=(V,E) on n vertices with the degree sum of any two weakly independent sets at least (32(k)+γ)n contains a Hamilton -cycle.
k-一致超图中Hamilton -环的ore型条件
经典的Ore定理指出,如果n顶点图中任意两个不相邻顶点的度数和至少为n,则该图包含一个Hamilton循环。Tang和Yan在2017年将这一结果推广到超图上,得到了紧Hamilton环存在的一个ore型条件。本文考虑了Hamilton -环存在的ore型充分条件。我们的主要结果是,当k≥3,1≤r <k/2, γ>;0时,当n足够大且n∈(k−r)n时,每个k-一致超图H=(V,E)在n个顶点上,且任意两个至少为(32(k−r)+γ)n的弱独立集的度和包含一个Hamilton -环。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Discrete Applied Mathematics
Discrete Applied Mathematics 数学-应用数学
CiteScore
2.30
自引率
9.10%
发文量
422
审稿时长
4.5 months
期刊介绍: The aim of Discrete Applied Mathematics is to bring together research papers in different areas of algorithmic and applicable discrete mathematics as well as applications of combinatorial mathematics to informatics and various areas of science and technology. Contributions presented to the journal can be research papers, short notes, surveys, and possibly research problems. The "Communications" section will be devoted to the fastest possible publication of recent research results that are checked and recommended for publication by a member of the Editorial Board. The journal will also publish a limited number of book announcements as well as proceedings of conferences. These proceedings will be fully refereed and adhere to the normal standards of the journal. Potential authors are advised to view the journal and the open calls-for-papers of special issues before submitting their manuscripts. Only high-quality, original work that is within the scope of the journal or the targeted special issue will be considered.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信