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A numerical range for two linear operators - MaRDI portal

A numerical range for two linear operators

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Publication:2555662

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DOI10.2140/PJM.1973.48.335zbMath0246.47003OpenAlexW2006830865MaRDI QIDQ2555662

Charles F. Amelin

Publication date: 1973

Published in: Pacific Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2140/pjm.1973.48.335

Mathematics Subject Classification ID

Eigenvalues, singular values, and eigenvectors (15A18) Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55) (Semi-) Fredholm operators; index theories (47A53) General theory of locally convex spaces (46A03) Duality theory for topological vector spaces (46A20)

Related Items (2)

Joint numerical ranges of operators in semi-Hilbertian spaces ⋮ Numerical range of two operators in semi-inner product spaces

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