Browsing by Author "Flora Mati Runji, John Ogonji Agure, Fredrick Oluoch Nyamwala"
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On the maximal numerical range of elementary operators Flora Mati Runji, John Ogonji Agure, Fredrick Oluoch Nyamwala (Academic Publications, Ltd., 2017-02)The notion of the numerical range has been generalized in different directions. One such direction, is the maximal numerical range introduced by Stampfli (1970) to derive an identity for the norm of a derivation on L(H). ...