General Toeplitz Matrices Subject to Gaussian Perturbations - Archive ouverte HAL
Article Dans Une Revue Annales Henri Poincaré Année : 2021

General Toeplitz Matrices Subject to Gaussian Perturbations

Résumé

We study the spectra of general N × N Toeplitz matrices given by symbols in the Wiener Algebra perturbed by small complex Gaussian random matrices, in the regime N 1. We prove an asymptotic formula for the number of eigenvalues of the perturbed matrix in smooth domains. We show that these eigenvalues follow a Weyl law with probability sub-exponentially close to 1, as N 1, in particular that most eigenvalues of the perturbed Toeplitz matrix are close to the curve in the complex plane given by the symbol of the unperturbed Toeplitz matrix.
Fichier principal
Vignette du fichier
ToeplitzGeneral200908.pdf (535.78 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02975968 , version 1 (23-10-2020)

Identifiants

Citer

Johannes Sjöstrand, Martin Vogel. General Toeplitz Matrices Subject to Gaussian Perturbations. Annales Henri Poincaré, 2021, 22, pp.49-81. ⟨10.1007/s00023-020-00970-w⟩. ⟨hal-02975968⟩
44 Consultations
74 Téléchargements

Altmetric

Partager

More