English

Zeros of random polynomials on C^m

Complex Variables 2007-11-13 v1 Probability

Abstract

For a regular compact set KK in CmC^m and a measure μ\mu on KK satisfying the Bernstein-Markov inequality, we consider the ensemble PNP_N of polynomials of degree NN, endowed with the Gaussian probability measure induced by L2(μ)L^2(\mu). We show that for large NN, the simultaneous zeros of mm polynomials in PNP_N tend to concentrate around the Silov boundary of KK; more precisely, their expected distribution is asymptotic to NmμeqN^m \mu_{eq}, where μeq\mu_{eq} is the equilibrium measure of KK. For the case where KK is the unit ball, we give scaling asymptotics for the expected distribution of zeros as NN\to\infty.

Keywords

Cite

@article{arxiv.math/0605739,
  title  = {Zeros of random polynomials on C^m},
  author = {Thomas Bloom and Bernard Shiffman},
  journal= {arXiv preprint arXiv:math/0605739},
  year   = {2007}
}

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10 pages