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On the convexity of Stampfli's numerical range
(Cambridge University Press, 1996-02)
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 ...
On the Theory of Random Search
(University of Nairobi,, 1994)
The problem of identifying one or more unknown elements belonging to a finite set So' containing n distinguishable elements is well known in literature. Designs used in this kind of investigation are known as search designs. ...