Browsing by Author "Musundi, Sammy W. *"
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On the Banach Space Numerical Range for a Linear Operator ",
Ohuru, Priscah M.; Musundi, Sammy W. *; Ombaka, C. Ochieng (Modern Scientific Press Company, Florida, USA, 2019-03-25)The numerical range has been studied extensively in Hilbert spaces. Properties of the numerical range such as non-emptiness, containment of the spectrum and in particular, convexity have been proved and results have ...