Weyl-model asymptotic conjecture for zeros of random harmonic polynomials

Let Hn,m(z)=p(z)+q(z)H_{n,m}(z)=p(z)+q(\overline{z}) be a random harmonic polynomial in the Weyl model, with pp and qq analytic complex polynomials of degrees nn and mm, respectively. Let NH(C)\mathcal{N}_{H}(\mathbb{C}) denote the number of zeros of Hn,mH_{n,m} in the complex plane, and let E\mathbb{E} denote expectation over the Weyl ensemble. Weyl-model zero-count conjecture. The expected number of zeros satisfies

ENH(C)13m3/2+n+O(n).\mathbb{E}\mathcal{N}_{H}(\mathbb{C})\sim \frac{1}{3}m^{3/2}+n+O(\sqrt{n}).

The paper proves growth-order results when m=αn+O(1)m=\alpha n+O(1) and linear growth in nn when mm is fixed, but the displayed asymptotic is presented as a conjecture and its full validity remains unresolved.

Sources & referencesView supporting material

Primary source

Andrew Thomack and Zachariah Tyree, “On the zeros of random harmonic polynomials: the Weyl model”, arXiv:1710.06906 (2017).

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