The typical-cell width convergence conjecture for high-dimensional Poisson–Voronoi cells

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Let Vtyp\mathcal V_{\text{typ}} be the typical cell of a Poisson–Voronoi tessellation in dimension dd, with intensity λ=λ(d)>0\lambda=\lambda(d)>0, and let BB denote the unit ball in Rd\mathbb R^d. Write width(Vtyp)\operatorname{width}(\mathcal V_{\text{typ}}) for its width and vol(B)\operatorname{vol}(B) for the volume of BB. Width convergence conjecture. There is a constant cc such that

width(Vtyp)λvol(B)ddPc.\frac{\operatorname{width}(\mathcal V_{\text{typ}})}{\sqrt[d]{\lambda\cdot\operatorname{vol}(B)}}\xrightarrow[d\to\infty]{\mathbb P}c.

The paper proves only non-matching constant upper and lower bounds for the normalized width, while the normalized inradius, outradius, diameter and mean width converge in probability to explicit constants. Determining whether the normalized width converges to a constant remains open.

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Primary source

Matthias Irlbeck, Zakhar Kabluchko and Tobias Müller, “On the shape of the typical Poisson-Voronoi cell in high dimensions”, arXiv:2506.02607 (2025).

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