Universal error-function edge kernel conjecture for pluricomplex polynomial Bergman kernels

From papers

Let d1d\geq 1, let Q:CdR\mathscr Q:\mathbb C^d\to\mathbb R be C2C^2 and strictly plurisubharmonic, and let SQS_{\mathscr Q} be its droplet with smooth boundary. For z0SQz_0\in\partial S_{\mathscr Q}, denote by n(z0)Cd\vec n(z_0)\in\mathbb C^d the outward unit normal vector at z0z_0. Universal edge-kernel conjecture. The normalized kernel has the local limit

limn1detnˉQ(z0)Kn(z0+n(z0)ξnˉQ(z0),z0+n(z0)ηnˉQ(z0))\lim_{n\to\infty} \frac1{\det n \partial\bar\partial\mathscr Q(z_0)} \mathscr K_n\left(z_0+\frac{\vec n(z_0)\xi}{\sqrt{n \partial\bar\partial\mathscr Q(z_0)}},z_0+\frac{\vec n(z_0) \eta}{\sqrt{n \partial\bar\partial\mathscr Q(z_0)}}\right) 12exp(ξηξ2+η22)erfc(ξ+η2),\equiv \frac12 \exp\left(\xi\overline\eta-\frac{|\xi|^2+|\eta|^2}2\right) \operatorname{erfc}\left(\frac{\xi+\overline\eta}{\sqrt 2}\right),

locally uniformly for ξ,ηC\xi,\eta\in\mathbb C. This conjecture is the higher-dimensional analogue of the known one-dimensional universal local edge scaling limit; the paper presents evidence from the pluripotential elliptic Ginibre model and related results, but the asserted universality in the stated generality remains open.

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Sources & referencesView supporting material

Primary source

L. D. Molag, “A pluricomplex error-function kernel at the edge of polynomial Bergman kernels”, arXiv:2604.04661 (2026).

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