RP-Department of Mathematics

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Browsing RP-Department of Mathematics by Author "Agure, J.O ."

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    On the convexity of stampfli's numerical range
    (Cambridge University Press, 1996) Agure, J.O .
    This paper investigates a certain type of numerical range introduced by Stampfli. In particular, we investigate the convexity of this set of elements of operators on Hilbert spaces and its relationship to the algebra numerical range implemented by elements of a W*-algebra