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arxiv: 1609.04761 · v1 · pith:TINI57GGnew · submitted 2016-09-15 · 🧮 math.CO

On the Linear Cycle Cover Conjecture of Gy\'arf\'as and S\'ark\"ozy

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keywords linearcyclehyperedgesalphaconjecturehypergraphvertexaccept
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A linear cycle in a hypergraph $H$ is a cyclic sequence of hyperedges such that two consecutive hyperedges intersect in exactly one element and two nonconsecutive hyperedges are disjoint and $\alpha(H)$ denotes the size of a largest independent set of $H$. In this note, we show that the vertex set of every $3$-uniform hypergraph $H$ can be covered by at most $\alpha(H)$ pairwise edge-disjoint linear cycles (where we accept a vertex and a hyperedge as a linear cycle), proving a weaker version of a conjecture of Gy\'arf\'as and S\'ark\"ozy.

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