Spectral inclusion for unbounded block operator matrices

DOI10.1016/j.jfa.2008.12.024zbMath1179.47005OpenAlexW1967281861MaRDI QIDQ1024573

Christiane Tretter

Publication date: 17 June 2009

Published in: Journal of Functional Analysis (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.jfa.2008.12.024

zbMATH Keywords

block numerical rangeblock operator matricesspectral inclusion

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Numerical range, numerical radius (47A12) Linear symmetric and selfadjoint operators (unbounded) (47B25) Spectral sets of linear operators (47A25)

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Cites Work

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