Bhardwaj–Narayanan–Venkataraman conjecture on lonely times

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Let VV be an nn-set of positive integer speeds, let vnv_n denote the largest speed, and let ∥x∥\|x\| be the distance from xx to the nearest integer. Conjecture on lonely times. For every n∈Nn\in\mathbb{N} and every such VV, there is a positive integer MM such that, if

t=M2⌈ln⁡2vn+1⌉(n+1)vn,t=\frac{M}{2^{\lceil\ln_2v_n+1\rceil}(n+1)v_n},

then

min⁡v∈V∥tv∥≥1n+1.\min_{v\in V}\|tv\|\geq\frac{1}{n+1}.

The conjecture proposes a structured time at which the origin is lonely and is described in the source as supported by simulations. Its general status is open.

References

Primary source

Guillem Perarnau and Oriol Serra, “The Lonely Runner Conjecture turns 60”, arXiv:2409.20160 (2025).

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