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Perturbation theory for a linear operator
Published online by Cambridge University Press: 24 October 2008
Abstract
We extend certain results of the theory of closed operators in Banach spaces to general linear operators in normed spaces. A ‘state diagram’ for linear operators is drawn up. We prove some perturbation theorems, improving or correcting certain results of Goldberg.
- Type
- Research Article
- Information
- Mathematical Proceedings of the Cambridge Philosophical Society , Volume 63 , Issue 1 , January 1967 , pp. 11 - 20
- Copyright
- Copyright © Cambridge Philosophical Society 1967
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