The boundary of the numerical range of an operator

DOI10.1016/0022-247X(79)90141-0zbMath0411.47001OpenAlexW2085456162MaRDI QIDQ1259834

Gerhard Garske

Publication date: 1979

Published in: Journal of Mathematical Analysis and Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0022-247x(79)90141-0

zbMATH Keywords

numerical range

Mathematics Subject Classification ID

Numerical range, numerical radius (47A12)

Related Items

Unattained boundary points of the numerical range of Hilbert space operators, A note on the boundary of the joint numerical range

Cites Work

• On stationary values of Rayleigh quotient of an operator
• Boundary of numerical range
• Extrema of the Rayleigh quotient and normal behavior of an operator