Spectra of 2×2 upper triangular operator matrices with unbounded entries

DOI10.1360/012015-44zbMath1497.47006OpenAlexW2970513065MaRDI QIDQ5063655

Mei Qing, De Yu Wu, Alatancang Chen

Publication date: 21 March 2022

Published in: SCIENTIA SINICA Mathematica (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1360/012015-44

zbMATH Keywords

essential spectrumapproximate point spectrumupper triangular operator matrixHamiltonian operator matrix

Mathematics Subject Classification ID

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

Related Items (7)

On some essential spectra of off-diagonal block operator matrix with application ⋮ The decomposability for operator matrices and perturbations ⋮ The essential spectrum equalities of 2r unbounded upper triangular operator matrices ⋮ The regular spectrum of upper triangular closed operator matrices ⋮ Unnamed Item ⋮ Unnamed Item ⋮ The Kachurovskij spectrum of Lipschitz continuous nonlinear block operator matrices

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