De Loera–La Haye–Oliveros–Roldán-Pensado conjecture on the Helly number of the prime lattice

Let P\mathcal{P} be the set of prime numbers, and let h(S)h(S) denote the Helly number of a set SR2S\subseteq\mathbb{R}^2. De Loera–La Haye–Oliveros–Roldán-Pensado conjecture.

h(P2)=.h(\mathcal{P}^2)=\infty.

This conjecture concerns the finiteness of Helly numbers for discrete planar sets and was cited as an open problem motivating the paper's study of exponential lattices.

Sources & referencesView supporting material

Primary source

Gergely Ambrus, Martin Balko, Nóra Frankl, Attila Jung and Márton Naszódi, “On Helly numbers of exponential lattices”, arXiv:2301.04683 (2023).

Additional references

2 papers in this index state this conjecture (2020–2023). The statement above is taken from the most recent of them; the others are arXiv:2008.06013.

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