Dirac-type conditions for spanning bounded-degree hypertrees

IF 1.2 1区 数学 Q1 MATHEMATICS Journal of Combinatorial Theory Series B Pub Date : 2023-11-22 DOI:10.1016/j.jctb.2023.11.002
Matías Pavez-Signé , Nicolás Sanhueza-Matamala , Maya Stein
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引用次数: 0

Abstract

We prove that for fixed k, every k-uniform hypergraph on n vertices and of minimum codegree at least n/2+o(n) contains every spanning tight k-tree of bounded vertex degree as a subgraph. This generalises a well-known result of Komlós, Sárközy and Szemerédi for graphs. Our result is asymptotically sharp. We also prove an extension of our result to hypergraphs that satisfy some weak quasirandomness conditions.

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生成有界度超树的dirac型条件
证明了对于固定k,每一个有n个顶点且最小余度至少为n/2+o(n)的k-一致超图包含每一个有界顶点度的生成紧k树作为子图。这推广了一个众所周知的关于图形的Komlós, Sárközy和szemersamedi的结果。我们的结果是渐近尖锐的。我们还证明了对满足弱拟随机条件的超图的推广。
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来源期刊
CiteScore
2.70
自引率
14.30%
发文量
99
审稿时长
6-12 weeks
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.
期刊最新文献
Cumulant expansion for counting Eulerian orientations Toward a density Corrádi–Hajnal theorem for degenerate hypergraphs The next case of Andrásfai's conjecture Kővári-Sós-Turán theorem for hereditary families Weak saturation in graphs: A combinatorial approach
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