Robust Katona–Kierstead conjecture for 3-uniform tight cycles

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Let HH be an nn-vertex 33-uniform hypergraph, and let Cn,3,2C_{n,3,2} denote its tight Hamilton cycle. A distribution on embeddings is vertex-spread if it has the vertex-spread property defined earlier in the paper. Robust Katona–Kierstead conjecture. There exists an absolute constant CC such that, whenever

δ2(H)≥⌊n2⌋,\delta_2(H)\geq\left\lfloor\frac n2\right\rfloor,

there is a (C/n)(C/n)-vertex-spread distribution on embeddings Cn,3,2↪HC_{n,3,2}\hookrightarrow H. The source places this proposed special case in an ignored conditional section and gives no resolution, so it remains open as stated.

References

Primary source

Tom Kelly, Alp Müyesser and Alexey Pokrovskiy, “Optimal spread for spanning subgraphs of Dirac hypergraphs”, arXiv:2308.08535 (2024).

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