[图书][B] Fredholm and local spectral theory, with applications to multipliers

P Aiena - 2004 - books.google.com
A signi? cant sector of the development of spectral theory outside the classical area of
Hilbert space may be found amongst at multipliers de? ned on a complex commutative …

[图书][B] Fredholm and local spectral theory II

P Aiena, P Aiena, Lodh - 2018 - Springer
The main focus of this book is on bounded linear operators on complex infinitedimensional
Banach spaces and their spectral properties. In recent years spectral theory, which has …

On local spectral properties of complex symmetric operators

S Jung, E Ko, M Lee, J Lee - Journal of mathematical analysis and …, 2011 - Elsevier
In this paper we study properties of complex symmetric operators. In particular, we prove that
every complex symmetric operator having property (β) or (δ) is decomposable. Moreover, we …

[PDF][PDF] Classes of operators satisfying -Weyl's theorem

P Aiena - Studia Mathematica, 2005 - iris.unipa.it
In this article Weyl's theorem and a-Weyl's theorem on Banach spaces are related to an
important property which has a leading role in local spectral theory: the single-valued …

Hereditarily polaroid operators, SVEP and Weyl's theorem

BP Duggal - Journal of mathematical analysis and applications, 2008 - Elsevier
A Banach space operator T∈ B (X) is hereditarily polaroid, T∈ HP, if every part of T is
polaroid. HP operators have SVEP. It is proved that if T∈ B (X) has SVEP and R∈ B (X) is a …

Polaroid operators and Weyl's theorem

B Duggal, R Harte, IH Jeon - Proceedings of the American Mathematical …, 2004 - JSTOR
Polaroid Operators and Weyl's Theorem Page 1 PROCEEDINGS OF THE AMERICAN
MATHEMATICAL SOCIETY Volume 132, Number 5, Pages 1345-1349 S 0002-9939(03)07381-7 …

Polaroid operators and generalized Browder-Weyl theorems

BP Duggal - Mathematical Proceedings of the Royal Irish Academy, 2008 - JSTOR
A Banach space operator T Є B (χ) is polaroid (left polaroid) if isolated points of the spectrum
(resp. isolated points λ of the approximate point spectrum) of T are poles of the resolvent of T …

[PDF][PDF] SVEP, Browder and Weyl theorems

BP Duggal - MA Jiménez P., J. Bustamante G. y SV Djordjevic …, 2009 - researchgate.net
Browder/Weyl theorems, in their classical and more recently in their generalized form, have
been considered by a large number of authors. This paper brings forth the important role …

Riesz idempotent, spectral mapping theorem and Weyl's theorem for (m,n)*-paranormal operators

S Ram, P Dharmarha - Random Operators and Stochastic Equations, 2023 - degruyter.com
In this paper, we show that the spectral mapping theorem holds for (m, n)*-paranormal
operators. We also exhibit the self-adjointness of the Riesz idempotent E λ of (m, n) …

[PDF][PDF] Generalized Weyl's theorem and quasi-affinity

P Aiena, M Berkani - Studia Mathematica, 2010 - researchgate.net
A bounded operator T∈ L (X) acting on a Banach space X is said to satisfy generalized
Weyl's theorem if the complement in the spectrum of the B-Weyl spectrum is the set of all …