The codegree Turán density of tight cycles minus one edge

Author:

Piga SimónORCID,Sales MarceloORCID,Schülke Bjarne

Abstract

AbstractGiven $\alpha \gt 0$ and an integer $\ell \geq 5$ , we prove that every sufficiently large $3$ -uniform hypergraph $H$ on $n$ vertices in which every two vertices are contained in at least $\alpha n$ edges contains a copy of $C_\ell ^{-}$ , a tight cycle on $\ell$ vertices minus one edge. This improves a previous result by Balogh, Clemen, and Lidický.

Publisher

Cambridge University Press (CUP)

Subject

Applied Mathematics,Computational Theory and Mathematics,Statistics and Probability,Theoretical Computer Science

Reference13 articles.

1. [1] Balogh, J. , Clemen, F. C. and Lidický, B. (2021) Hypergraph Turán Problems in $\ell _2$ -Norm. arXiv preprint arXiv: 2108.10406.

2. [10] Mubayi, D. , Pikhurko, O. and Sudakov, B. (2011) Hypergraph Turán Problem: Some Open Questions. https://homepages. https://homepages.

3. On a Turán problem in weakly quasirandom 3-uniform hypergraphs

4. A problem of Erdős and Sós on 3-graphs

5. Co-degree density of hypergraphs

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