Bergman kernels for weighted polynomials and weighted equilibrium measures of C^n

Details Bergman kernels for weighted polynomials and weighted equilibrium measures of C^n Bergman kernels for weighted polynomials and weighted equilibrium measures of C^n

2007-02-13

arxiv.org/abs/math/0702357v2

Mathematics

Complex Variables

v1: 11 pages v2: 19 pages. Substantial revision: regularity assumption on the weight weakened to C^1,1, setting of polynomials

Scientific paper

Various convergence results for the Bergman kernel of the Hilbert space of all polynomials in \C^{n} of total degree at most k, equipped with a weighted norm, are obtained. The weight function is assumed to be C^{1,1}, i.e. it is differentiable and all of its first partial derivatives are locally Lipshitz continuous. The convergence is studied in the large k limit and is expressed in terms of the global equilibrium potential associated to the weight function, as well as in terms of the Monge-Ampere measure of the weight function itself on a certain set. A setting of polynomials associated to a given Newton polytope, scaled by k, is also considered. These results apply directly to the study of the distribution of zeroes of random polynomials and of the eigenvalues of random normal matrices.

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