B-Fredholm Spectra of Drazin Invertible Operators and Applications

E Aponte, J Macías, J Sanabria, J Soto - Axioms, 2021 - mdpi.com
In this article, we consider Drazin invertible operators for study of the relationship between
their B-Fredholm spectra and the transfer between some of the spectral properties defined …

Property (Bv) and Tensor Product

E Aponte, P Vasanthakumar, N Jayanthi - Symmetry, 2022 - mdpi.com
In this article, a-Browder's classical theorem is considered through the property (B v), and we
show that if two operators are norm equivalent, then property (B v) holds for one if and only if …

[PDF][PDF] On commuting quasi-nilpotent operators that are injective

P Aiena, F Burderi, S Triolo - Mathematical Proceedings of the …, 2022 - researchgate.net
ON COMMUTING QUASI-NILPOTENT OPERATORS THAT ARE INJECTIVE Pietro Aiena
Fabio Burderi and Salvatore Triolo Università di Palermo Page 1 ON COMMUTING QUASI-NILPOTENT …

Tensor Product of Operators Satisfying Zariouh's Property (gaz), and Stability under Perturbations

E Aponte, N Jayanthi, D Quiroz, P Vasanthakumar - Axioms, 2022 - mdpi.com
For bounded linear operators defined on complex infinite-dimensional Banach space, H.
Zariouh, in an article introduced and studied the property (gaz). In this study, through …

Further Properties of an Operator Commuting with an Injective Quasi-Nilpotent Operator

P Aiena, F Burderi, S Triolo - Mediterranean Journal of Mathematics, 2024 - Springer
Abstract In (Aiena et al., Math. Proc. R. Irish Acad. 122A (2): 101–116, 2022), it has been
shown that a bounded linear operator T∈ L (X), defined on an infinite-dimensional complex …

[PDF][PDF] Property (az) through Topological Notions and Some Applications

EA VALLADARES - Transactions of A. Razmadze Mathematical …, 2022 - researchgate.net
In this article, for a bounded linear operator defined on a complex infinite-dimensional
Banach space, through classical methods of local spectral theory, we study an important …

The property and local spectral theory

E Aponte, L Lima, J Sanabria - arXiv preprint arXiv:2402.10170, 2024 - arxiv.org
In this paper, we introduce and study the spectral property $(E_A) $. This property means
that the difference between the approximate point spectrum and the upper semi-Fredholm …

Perturbation Theory for Property (VE) and Tensor Product

E Aponte, J Sanabria, L Vásquez - Mathematics, 2021 - mdpi.com
Given a complex Banach space X, we investigate the stable character of the property (VE)
for a bounded linear operator T: X→ X, under commuting perturbations that are Riesz …

On S-Weyl's theorem and property (t) for some classes of operators

P Aiena, F Burderi, S Triolo - Acta Scientiarum Mathematicarum, 2024 - Springer
In this paper we consider two new variants of the classical Weyl's theorem for operators
defined on Banach spaces. These variants called S-Weyl's theorem and property (t) are …

Some new results on property

P Aiena, M Kachad - Rendiconti del Circolo Matematico di Palermo Series …, 2023 - Springer
Abstract Property (UW\scriptstyle Π)(UW Π) for a bounded linear operator T ∈ L (X) T∈ L (X)
on a Banach space X means that the points λ λ of the approximate point spectrum for which …