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On Numerical and Centre Values Range
(Int. Journal of Math, 2010)
This paper follows [1] in the quantitative study of Numerical Ranges
introduced by Stampfli [9]. In particular, we consider a family of mutually orthogonal projections and investigate how a numerical range can
be related ...
Training of lecturers at Maseno University, Kenya
(Proceedings of the ICOTS8 conference, 2010)
Lecturers in Kenyan universities usually start their work without any prior training on how to
teach students. Hence the teaching tends to be traditional and new training techniques are rarely
implemented. For effective ...
A Functional Calculus for (α, α+ 1)− type R Operators
(Int. Journal of Math. Analysis,, 2010)
A closed densely defined operator H, on a Banach space X, whose
spectrum is contained in R and satisfies
(z − H)−1
≤ c
z α
| z|β
∀ z ∈ R with z α :=
|z|2 + 1 (1)
for some α , β ≥ 0; c > 0, is said to ...
Aspects of (pq) summing multipliers
(Vdm verlag Dr. Muller aktiengeselischaft & co. kg., 2010)
A sequence (uj)j2N of operators in L(X; Y ) is a (p; q)-summing multi-
plier (or (p; q)-summing sequence of operators), in short (uj) 2 `¼p;q (X; Y ), if there
exists a constant C > 0 such that, for any ¯nite collection ...
Norms of Inner Derivations on Norm ideals
(Int. Journal of Math. Analysis, 2010)
Let B(H) be the algebra of bounded linear operators on a Hilbert
space H and J be a norm ideal in B(H). We investigate the relationship
between the diameter of the numerical range of an operator A ∈ B(H)
and the norm ...
Norm of a derivation and hyponormal operators
(Int J Math Anal, 2010)
We characterize when the norm of inner derivation on a norm ideal
equals that on the quotient algebra. We further investigate norms of
inner derivations implemented by normal and hyponormal operators on
norm ...
BLOCK QUIVERS AND THEIR MUTATIONS
(Maseno University, 2010)
Incremental Modernization of Statistics Teaching and Curriculum at Maseno University, Kenya
(International Association of Statistical Education, 2010)
Modernisation of statistics teaching is a continual problem the world over. The advances in
statistical methods and tools along with the growing demand of applied practitioners creates a
dual need of people with the ...