Browsing School of Mathematics, Statistics and Actuarial Science by Subject "PURE MATHEMATICS"
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Certain properties of essential Numerical ranges of bounded Operators on banach spaces
(Maseno University, 2018)Abstract The numerical range of an operator on a Hilbert space has been extensively researched on. The concept of numerical range of an operator goes back as early as 1918 when Toeplitz defined it as the field of values ...