CFI upper triangular operator matrices

DOI10.1080/03081087.2022.2058457OpenAlexW4220714271MaRDI QIDQ6044832

Jiong Dong, Xiaohong Cao

Publication date: 22 May 2023

Published in: Linear and Multilinear Algebra (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/03081087.2022.2058457

zbMATH Keywords

Fredholm operatorWeyl operatorrangeupper triangular operator matrixCFI

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) (Semi-) Fredholm operators; index theories (47A53) General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05)

Related Items (1)

The upper semi-Weylness and positive nullity for operator matrices

Cites Work

• Essential spectrum of upper triangular operator matrices
• Weyl type theorems of \(2 \times 2\) upper triangular operator matrices
• Closedness of ranges of upper-triangular operators
• Essential approximate point spectra and Weyl's theorem for operator matrices
• The (generalized) Weylness of upper triangular operator matrices
• Closed range and Fredholm properties of upper-triangular operator matrices
• Self-adjoint perturbations of spectra for upper triangular operator matrices
• Semi-Fredholm spectrum and Weyl's theorem for operator matrices
• WEYL SPECTRUM OF THE PRODUCTS OF OPERATORS
• On upper triangular operator 2 x 2 matrices over C*-algebras
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