scientific article

zbMath1355.47007MaRDI QIDQ2953230

Aymen Ammar, Mohammed Zerai Dhahri, Aref Jeribi

Publication date: 4 January 2017

Full work available at URL: http://operator.pmf.ni.ac.rs/www/pmf/publikacije/faac/2015/2015-7-1/faac-7-1-2.pdf

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zbMATH Keywords

\(2 \times 2\) operator matrix\(M\)-essential spectra\(M\)-Fredholmness

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55) (Semi-) Fredholm operators; index theories (47A53)

Related Items (1)

Invariance of the essential spectra of closed linear operator pencils on a Banach space

Cites Work

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• Stability of the \(S\)-left and \(S\)-right essential spectra of a linear operator
• Perturbation theory for nullity, deficiency and other quantities of linear operators
• Some remarks on the Schechter essential spectrum and applications to transport equations.
• On the essential spectrum of matrix operators
• A characterization of some subsets of Schechter's essential spectrum and application to singular transport equation
• On the essential spectrum
• Approximate point spectrum and commuting compact perturbations
• Quelques remarques sur le spectre de Weyl et applications
• The spectral mapping theorem for the essential approximate point spectrum
• Une nouvelle caractérisation du spectre essentiel et application
• Stability of the S-essential spectra on a Banach space

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