Essential Numerical Range of an Operator with Respect to a Coercive form and the Approximation of Its Spectrum by the Galerkin Method
- 1 December 1981
- journal article
- Published by Society for Industrial & Applied Mathematics (SIAM) in SIAM Journal on Numerical Analysis
- Vol. 18 (6) , 1128-1133
- https://doi.org/10.1137/0718077
Abstract
No abstract availableThis publication has 3 references indexed in Scilit:
- Zur asymptotischen Störungstheorie für Eigenwertaufgaben mit diskreten TeilspektrenMathematische Zeitschrift, 1975
- A characterization of the Browder spectrumProceedings of the American Mathematical Society, 1973
- On the η Function of Brown and Pearcy and the Numerical Function of an OperatorCanadian Journal of Mathematics, 1971