scientific article; zbMATH DE number 5174913

zbMATH Open1211.47007MaRDI QIDQ5294954

Xiaohong Cao

Publication date: 26 July 2007

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

Hilbert space\(a\)-Browder's theorem\(a\)-Weyl's theorem\(3\times 3\) upper triangular operator matricesupper semi-Fredholm (lower semi-Fredholm) operator

Mathematics Subject Classification ID

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

Related Items (1)

Weyl’s theorem for upper triangular operator matrix and perturbations

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