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arXiv · 1211.5983

Convex curves and a Poisson imitation of lattices

Nick Gravin·Fedor Petrov·Sinai Robins·Dmitry Shiryaev
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Abstract

We solve a randomized version of the following open question: is there a strictly convex, bounded curve γin the plane such that the number of rational points on γ, with denominator $n$, approaches infinity with $n$? Although this natural problem appears to be out of reach using current methods, we consider a probabilistic analogue using a spatial Poisson-process that simulates the refined rational lattice $\frac{1}{d} Z^2$, which we call $M_d$, for each natural number $d$. The main result here is that with probability 1 there exists a strictly convex, bounded curve γsuch that the number of spatial Poisson points on γ, with intensity $d$, approaches infinity with $d$. The methods include the notion of a generalized affine length of a convex curve, defined by Petrov (2007).

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Nick Gravin, Fedor Petrov, Sinai Robins, Dmitry Shiryaev. 2012-11-26. Convex curves and a Poisson imitation of lattices. https://doi.org/10.1112/s0025579313000259

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