Research articles (Dept of Mathematics): Recent submissions
Now showing items 21-36 of 36
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More on equivalence properties of Radon-Nikodym property types and Complete Continuity property types
(Pushpa Publishing House, www.pphmj.com, 2013-01)We study the equivalence property of the I- and II-L-Radon-Nikodým property (resp. I- and II-L-complete continuity property) types of Banach spaces. As a by-product, we obtain a proof of the following: F. Lust-Picard’s ... -
A concise approach to real analysis
(Lulu, www.lulu.com, 2014-10-07) -
Tensor Integral: A new comprehensive approach to the integration theory
(SCIENCEDOMAIN International, www.sciencedomain.org, 2014-09-15)We use tensor product to introduce a new approach to the theory of integration. Such an approach will strengthen the existing various classical concepts of integral and will provide a continuous thread tying the subject ... -
On the differentiability of vector valued additive set functions
(Scientific Research, http://www.scirp.org, 2013-11)The Lebesgue-Nikodým Theorem states that for a Lebesgue measure λ:Σ〖⊂2〗^Ω→[0,∞) an additive set function F:Σ→R which is λ-absolutely continuous is the integral of a Lebegsue integrable a measurable function ... -
Vector measures of bounded semivariation and associated convolution operators
(Glasgow Mathematical Journal Trust, http://journals.cambridge.org/action/displayJournal?jid=GMJ, 2011)Let G be a compact metrizable abelian group, and let X be a Banach space. We characterize convolution operators associated with a regular Borel X-valued measure of bounded semivariation that are compact (resp; weakly ... -
Thermal analysis and annealing temperature dependence of electrical properties in Sn10Sb20Se70 glassy semiconductor
(Springer Netherlands, 2008)The melt-quenched Sn10Sb20Se70 sample in the bulk form was used to prepare films on well-cleaned glass substrates by thermal evaporation method. The activation energy for glass transition (apparent) and crystallization has ... -
Screen integrable lightlike hypersurfacesof indefinite sasakian manifolds
(Birkhäuser Basel. http://www.springerlink.com/content/110963/?p=c42ba01ff0bd482b81a3ebdf3b649c9a&pi=0, 2009)We investigate lightlike hypersurfaces of indefinite Sasakian manifolds, tangent to the structure vector field and whose screen distribution is integrable. We prove some results on parallel vector fields and on a leaf ... -
On semi-parallel lightlike hypersurfaces of indefinite Kenmotsu manifolds
(Birkhäuser Basel. http://www.springerlink.com/content/107580/?p=1930c3cc1de944feae211b785b3b42a4&pi=0, 2009)We study semi-parallel lightlike hypersurfaces of an indefinite Kenmotsu manifold, tangent to the structure vector field. Some Theorems on parallel and semi-parallel vector field, geodesibility of lightlike hypersurfaces ... -
Teachers’ experiences with an adapted IGCSE physics syllabus in Botswana
(Elsevier, www.elsevier.com/locate/ijedudev, 2005)This paper focuses on teachers’ experiences with implementing a modified International General Certificate of Secondary Education (IGCSE) physics syllabus in Botswana. The syllabus, characterised by a new organisational ... -
A study of pulsatile blood flow modeled as a power low fluid in a constricted tube
(Elsevier; www.elsevier.com/locate/ichmt, 2007-07)A mathematical model for the pulsatile blood flow in a small vessel in a cardiovascular system with a mild stenosis is analyzed. Blood is modeled as a power low fluid and the differential approximation for the heat flux ... -
Homotopy Lie Algebra of Spaces for Hyperbolic Coformal 2-Cones
(International Press; http://www.intlpress.com/HHA/, 2004)In this paper, we show that the rational homotopy Lie algebra of classifying spaces for certain types of hyperbolic coformal 2-cones is not nilpotent. -
Improved particle swarm algorithms for global optimization
(Elsevier Ltd. www.elevier.com/locate/amc, 2008)Particle swarm optimization algorithm has recently gained much attention in the global optimization research community. As a result, a few variants of the algorithm have been suggested. In this paper, we study the efficiency ... -
String Homology of a Product of Spheres and the Witt Algebra
(Nova Science Publishers, Inc.; www.novapublishers.com; reprinted with permission from Nova Science Publishers, Inc., 2007)Let X be a finite product of even dimensional spheres, we show that the string homology of X contains a finite product of copies of the Witt Lie algebra. -
Stochastic models for sunshine duration and solar irradiation
(Elsevier Science Ltd: http://www.elsevier.com/wps/find/journaldescription.cws_home/969/description#description, 2002)Abstract Harmonic analysis of sunshine duration and solar irradiation measured at Sebele, Botswana is carried out. The data used consists of the monthly averages and the Julian-days averages of sunshine duration and solar ... -
Renewable energy education in Botswana: needs, status and proposed training programs
(Elsevier Science Ltd. http://www.sciencedirect.com/science/journal/09601481, 2002-01)Lack of trained manpower for repair and maintenance of solar energy devices in Botswana has resulted in failure of devices, loss of revenue, and dwindling of consumer faith in solar technologies. The government of Botswana ... -
A numerical study of some modified differential evolution algorithms
(Elsevier; www.elsevier.com/locate/ejor, 2006)Modifications in mutation and localization in acceptance rule are suggested to the differential evolution algorithm for global optimization. Numerical experiments indicate that the resulting algorithms are considerably ...