Unattained boundary points of the numerical range of Hilbert space operators

DOI10.1017/S0004972700009436zbMath0555.47003MaRDI QIDQ3218649

Srimati Majumdar

Publication date: 1985

Published in: Bulletin of the Australian Mathematical Society (Search for Journal in Brave)

zbMATH Keywords

numerical rangeToeplitz-Hausdorff theoremunattained boundary points

Mathematics Subject Classification ID

Numerical range, numerical radius (47A12)

Cites Work

• Boundary of numerical range
• The boundary of the numerical range of an operator
• Extreme points of the numerical range of a hyponormal operator
• The numerical range of an operator
• The norm of a derivation
• Boundary Points of the Numerical Range of an Operator
• Approximate Proper Vectors
• On the Closure of the Numerical Range of an Operator

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