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arxiv 2102.02058 v3 pith:EZZX25T4 submitted 2021-02-03 math.PR

The limit empirical spectral distribution of complex matrix polynomials

classification math.PR
keywords matrixsomecomplexdistributionempiricalinftylimitpolynomials
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We study the empirical spectral distribution (ESD) for complex n x n matrix polynomials of degree k. We obtain exact formulae for the almost sure limit of the ESD in two distinct scenarios: (1) n -> \infty with k constant and (2) k -> \infty with n bounded by O(k^P) for some P>0. The main tools used are the logarithmic potential of some measure related to the matrix polynomial, and some classical estimates on the singular values of full random matrices with i.i.d. entries.

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  1. Logarithmic Spectral Distribution of a Non-Hermitian $\beta$-Ensemble

    math-ph 2025-04 unverdicted novelty 7.0

    The limiting spectral density of the new non-Hermitian beta-ensemble is the logarithm of the radius plus a constant, rotationally invariant on a compact disk.