The power inequality on Banach spaces
Published online by Cambridge University Press: 24 October 2008
Extract
Let X be a complex normed space with dual space X′ and let T be a bounded linear operator on X. The numerical range of T is defined as
and the numerical radius is v(T) = sup {|ν: νε V(T)}. Most known results and problems concerning numerical range can be found in the notes by Bonsall and Duncan (5).
- Type
- Research Article
- Information
- Mathematical Proceedings of the Cambridge Philosophical Society , Volume 69 , Issue 3 , May 1971 , pp. 411 - 415
- Copyright
- Copyright © Cambridge Philosophical Society 1971
References
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