Finite Operators and Similarity Orbits

DOI10.2307/2045529zbMath0612.47017OpenAlexW4244698166MaRDI QIDQ3752962

Domingo A. Herrero, Lawrence A. Fialkow

Publication date: 1985

Full work available at URL: https://doi.org/10.2307/2045529

zbMATH Keywords

similarity transformationCalkin algebrafinite operatorclosure of the numerical range

Mathematics Subject Classification ID

Numerical range, numerical radius (47A12) Structure theory of linear operators (47A65) Quasitriangular and nonquasitriangular, quasidiagonal and nonquasidiagonal linear operators (47A66)

Cites Work

• Derivations on \(B({\mathcal H})\): The range
• Reducing essential eigenvalues
• Über den numerischen Wertebereich eines Operators
• Similarity and the numerical range
• Irreducible operators
• Growth conitions and the numerical range in a Banach algebra
• Über die Unbeschränktheit der Operatoren der Quantenmechanik
• Semi-Inner-Product Spaces
• The Similarity Orbit of a Normal Operator
• The closure of the similarity orbit of a Hilbert space operator
• Finite Operators
• Ten problems in Hilbert space
• Derivation ranges and the identity
• The Unboundedness of Quantum-Mechanical Matrices
• Eine Spektraltheorie für allgemeine Operatoren eines unitären Raumes. Erhard Schmidt zum 75. Geburtstag in Verehrung gewidmet
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