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Now showing items 11-15 of 15
Norms of derivation associated with idempotents and unitary operators
(6/24/2015)
The study of operators has continued to attract the attention of many researchers. Of special interest are the calculations of norms of these operators. Johnson Stampfli wrote a paper on the norms of derivation on algebra ...
On shift of mindset: the importance of change of mindset in helping students get better at getting better in mathematics
(JOOUST, 6/24/2015)
That mathematics is important in enhancing creativity, innovativeness and technological development is undisputable. Kenya like any other African country is endowed with reach human resource yet lesscompetitive ...
On numerical radius attainability for normal self-adjoint operators
(JOOUST, 6/24/2015)
The numerical range and numerical radius are very useful in studying linear operators acting on Hilbert spaces. The operators include normal, hyponormal, normaloid, transaloid, self-adjoint, subnormal, compact and unitary. ...
Norm estimates for convexoid operators
(JOOUST, 6/24/2015)
Hilbert space operators are important in formulation of principles of quantum mechanics and also in other fields of applied sciences. These operators include normal operators, hyponormal operators, normaloid operators, ...
Certain properties of normaloid operators
(JOOUST, 6/24/2015)
In this paper we establish new conditions for contractivity of normaloid operators. We employ some results for contractivity due to Furuta, Nakomoto, Arandelovic and Dragomir. A particular generalization is also given.