Towards a hypergraph version of the Pósa-Seymour conjecture
Advances in Combinatorics (2023)
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We prove that for fixed $r\ge k\ge 2$, every $k$-uniform hypergraph on $n$ vertices having minimum codegree at least $(1-(\binom{r-1}{k-1}+\binom{r-2}{k-2})^{-1})n+o(n)$ contains the $(r-k+1)$th power of a tight Hamilton cycle. This result may be seen as a step towards a hypergraph version of the Pósa-Seymour conjecture.
Moreover, we prove that the same bound on the codegree suffices for finding a copy of every spanning hypergraph of tree-width less than $r$ which admits a tree decomposition where every vertex is in a bounded number of bags.
@article{ADVC_2023_a4,
author = {Mat{\'\i}as Pavez-Sign\'e and Nicol\'as Sanhueza-Matamala and Maya Stein},
title = {Towards a hypergraph version of the {P\'osa-Seymour} conjecture},
journal = {Advances in Combinatorics},
year = {2023},
language = {en},
url = {http://geodesic.mathdoc.fr/item/ADVC_2023_a4/}
}
Matías Pavez-Signé; Nicolás Sanhueza-Matamala; Maya Stein. Towards a hypergraph version of the Pósa-Seymour conjecture. Advances in Combinatorics (2023). http://geodesic.mathdoc.fr/item/ADVC_2023_a4/