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arxiv: 1607.02855 · v1 · pith:BGOBMNG7new · submitted 2016-07-11 · 🧮 math.CV · math.PR

Equidistribution of zeros of random polynomials

classification 🧮 math.CV math.PR
keywords polynomialsinftyrandomzerosalmostanalyticassociatedasymptotic
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We study the asymptotic distribution of zeros for the random polynomials $P_n(z) = \sum_{k=0}^n A_k B_k(z)$, where $\{A_k\}_{k=0}^{\infty}$ are non-trivial i.i.d. complex random variables. Polynomials $\{B_k\}_{k=0}^{\infty}$ are deterministic, and are selected from a standard basis such as Szeg\H{o}, Bergman, or Faber polynomials associated with a Jordan domain $G$ bounded by an analytic curve. We show that the zero counting measures of $P_n$ converge almost surely to the equilibrium measure on the boundary of $G$ if and only if $\mathbb{E}[\log^+|A_0|]<\infty$.

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