Universality arising from invertible weighted composition operators

A linear operator U acting boundedly on an infinite-dimensional separable complex Hilbert space H is universal if every linear bounded operator acting on H is similar to a scalar multiple of a restriction of U to one of its invariant subspaces. It turns out that characterizing the lattice of closed invariant subspaces of a universal operator is equivalent to solve the Invariant Subspace Problem for Hilbert spaces. In this paper, we consider invertible weighted hyperbolic composition operators and we prove the universality of the translations by eigenvalues of such operators, acting on Hardy and weighted Bergman spaces. Some consequences for the Banach space case are also discussed.

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Publication Details

Journal
Journal of Mathematical Analysis and Applications
Published
2024-12-03
DOI
https://doi.org/10.1016/j.jmaa.2024.129129
Citations
1
Primary Topic
Holomorphic and Operator Theory
Type
article
Field-Weighted Citation Impact
0.97

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article

Universality arising from invertible weighted composition operators

Jesús Oliva-Maza, Luciano Abadías, F. Javier González‐Doña
1 citations
Journal of Mathematical Analysis and Applications
Holomorphic and Operator Theory
0.97
article

Universality arising from invertible weighted composition operators

Jesús Oliva-Maza, Luciano Abadías, F. Javier González‐Doña
article en
1 citations

Abstract

A linear operator U acting boundedly on an infinite-dimensional separable complex Hilbert space H is universal if every linear bounded operator acting on H is similar to a scalar multiple of a restriction of U to one of its invariant subspaces. It turns out that characterizing the lattice of closed invariant subspaces of a universal operator is equivalent to solve the Invariant Subspace Problem for Hilbert spaces. In this paper, we consider invertible weighted hyperbolic composition operators and we prove the universality of the translations by eigenvalues of such operators, acting on Hardy and weighted Bergman spaces. Some consequences for the Banach space case are also discussed.

Journal of Mathematical Analysis and ApplicationsVol. 545(1)
Universidad de Zaragoza (ES), Institute of Mathematical Sciences (ES), Universidad Carlos III de Madrid (ES), Universidad Autónoma de Madrid (ES)
Fundación Ramón Areces, Ministerio de Ciencia e Innovación, Departamento de Educación, Cultura y Deporte, Gobierno de Aragón
Openalex Percentile: Top 22%
Holomorphic and Operator Theory
0.97
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