Spectra of 2 x 2 upper triangular operator matrices

DOI10.2298/FIL1613587HzbMath1467.47003OpenAlexW2596512120MaRDI QIDQ5279631

Aichun Liu, Alatancang Chen, Jun-Jie Huang

Publication date: 19 July 2017

Published in: Filomat (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2298/fil1613587h

zbMATH Keywords

perturbation theoryspectrum\(2\times2\) upper triangular operator matrix

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Operator matrices (47A08)

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