Zeros Of Random Analytic Functions And Spectral Properties Of Perturbed Unitary Matrices

Fuente: arXiv
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Autore principale: Fares, Aniss
Natura: Preprint
Pubblicazione: 2025
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author Fares, Aniss
author_facet Fares, Aniss
contents We study the spectral properties of a rank-one multiplicative perturbation of a unitary matrix, a model introduced by Fyodorov. Building upon earlier results by Forrester and Ipsen, we provide a direct proof that the eigenvalues converge to the zeros of a specific Gaussian analytic function. Our approach extends these results to other unitarily invariant models. This method enables us to address a question raised by Dubach and Reker concerning the critical timescale at which an outlier emerges.
format Preprint
id arxiv_https___arxiv_org_abs_2509_03252
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Zeros Of Random Analytic Functions And Spectral Properties Of Perturbed Unitary Matrices
Fares, Aniss
Probability
60B20, 30B20, 15B52 (Primary) 47B93 (Secondary)
We study the spectral properties of a rank-one multiplicative perturbation of a unitary matrix, a model introduced by Fyodorov. Building upon earlier results by Forrester and Ipsen, we provide a direct proof that the eigenvalues converge to the zeros of a specific Gaussian analytic function. Our approach extends these results to other unitarily invariant models. This method enables us to address a question raised by Dubach and Reker concerning the critical timescale at which an outlier emerges.
title Zeros Of Random Analytic Functions And Spectral Properties Of Perturbed Unitary Matrices
topic Probability
60B20, 30B20, 15B52 (Primary) 47B93 (Secondary)
url https://arxiv.org/abs/2509.03252