Browsing by Title
Now showing items 1380-1399 of 2172
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On size function topology and fixed point theorems
(International Scientific Publications and Consulting Services, http://www.ispacs.com/about.php, 2017-06)In this paper, we introduce and study a metric-like (non-necessarily metric) topology that is weaker than the original topology of a given topological space. The results are used to provide more useful and more general ... -
On summable bases in Banach spaces
(Science Domian International, www.sciencedomain.org, 2014-06-24)We introduce the notion of summable bases that naturally generalizes the notion of unconditional sequence bases for Banach spaces. We shall be particularly interested in some classical results on sequences and series in ... -
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 ... -
On the Orlicz-Pettis theorem for integrals
(Pushpa Publishing House, www.pphmj.com, 2010-10)In this note, we propose a more efficient approach to the definition of the integral of Banach-valued functions that enables us to give an improved version of the Orlicz-Pettis theorem for integrals. -
On the oscillatory flow past an infinite vertical porous plate1 - mean flow
(University of Botswana, 1998) -
On the Riesz representation theorem and integral operators
(NISC (Pty) Ltd, http://www.nisc.co.za/, 2015-12-14)We present a Riesz representation theorem in the setting of extended integration theory as introduced in [6]. The result is used to obtain boundedness theorems for integral operators in the more general setting of spaces ... -
On the status of subject markers in African languages
(Joongwon Linguistic Society of Korea, http://submission.jwl.or.kr/sobis/jwl.jsp, 2017)This paper discusses subject markers in African languages, noting that whereas the grammatical functions of these morphemes are fairly clear; their status as affixes or clitics is not. The unclear status of subject markers ... -
On the subspace problem for Quasi-normed spaces
(ScienceDomain International; www.sciencedomain.org, 2016-07-02)A definitive positive answer to the so-called proper subspace problem (a.k.a. the atomic space problem) for quasi-normed spaces is given: every infinite dimensional quasi-normed space has a proper closed infinite-dimensional ... -
One body playing many parts-Ie Betjouana, el Negro, and il Bosquimano
(University of Botswana, Research and Development Unit/http://digital.lib.msu.edu/projects/africanjournals/browse.cfm?colid=12, 2002)This article talks about how the body of El Negro was stolen from southern Africa and how it was kept as an exhibit in a museum in Spain. Two French taxidermists stole the body later known as El Negro from a grave beyond ... -
One step forward, two steps back: a critical analysis of Anglican and Roman Catholic bilateral relations from a theological perspective
(University of Botswana, www.ub.bw, 2018-12-14)This paper is a critical examination of Anglican-Roman Catholic bilateral relations from a theological perspective. The main argument of the paper is that while the Anglican and Roman Catholic Churches consider themselves ... -
Online social networking and academic performance at the University of Botswana
(Mosenodi, https://journals.ub.bw/index.php/mosenodi, 2017-11-07)The growing interest in Internet-based Social Network Sites (SNS) and the increased form of social interactions taking place via globalised digital networks has not spared educational institutions. The adoption of SNS by ... -
Open justice and broadcasting of legal proceedings in Botswana: the need for reform
(University of Botswana Law Journal, http://journals.ub.bw/index.php/ublj, 2017-09-13)The principle of open justice is a central tenet of the administration of justicein Botswana. Open justice requires that, as a general rule, courts of lawmust conduct their business publicly unless this could result in ... -
Opinion polls in Botswana
(Pula: Botswana Journal of African Studies, 2000)Opinion polls are a relatively new phenomenon in Botswana but nonetheless a welcome development as they inform both the candidates and the campaigners on pertinent issues facing the electorate. Opinion polls becomes more ... -
Opinions about and acceptability of HIV self-testing amongst students at the Institute of Health Sciences- Lobatse, Botswana
(PULA: Botswana Journal of African Studies, http://journals.ub.bw, 2017-07-05)Botswana was amongst the first African countries to introduce universal access to HIV testing through voluntary counseling and testing (VCT) and routine HIV testing (RHT). However, despite years of the implementation of ... -
Optical Characterization of TiO2-bound (CuFeMnO4) Absorber Paint for Solar Thermal Applications
(Science and Education Publishing, http://www.sciepub.com/journal/AJER, 2016)A composite thin film consisting of TiO2 (binder), uniformly mixed CuFeMnO4 paint (solar absorber) was coated on textured aluminum sheets by dip coating. The film’s elemental analysis was done using energy dispersive x-ray ... -
Optical Features, Microstructure and Microanalysis of Botswana Agates
(University of Botswana; www.ub.bw, 2015-07-09)In Botswana agates are found in the north-eastern region of the Central District in the basalt from the 180 Ma Karoo volcanic rocks. Predominantly they are wall-lining agates but some vein agates can also be found. There ... -
Optical properties of amorphous Sb2Se3:Sn films
(Taylor & Francis, 2010)The measurements and analysis of optical transmission and far-infrared (IR) reflectivity spectra of thermally evaporated Sb2Se3:Sn films are reported. The refractive index and film thickness have been determined from ... -
Optical properties of GaAs nanowires with an electric potential that varies inversely with the square of the radial distance
(Hindawi, https://www.hindawi.com/, 2019-07-10)A theoretical investigation of optical properties of a cylindrical quantum wire (CQW) is presented. The properties studied were optical absorption coefficient (AC) and change in refractive index (CRI) of the quantum wire. ... -
Optical transition rates in a cylindrical quantum wire with an inverse parabolic potential
(Opast Group LLC, https://www.opastpublishers.com/journal/advances-in-theoretical-computational-physics, 2019-05-25)Electron transition rates due to interaction with circularly polarized light incident along the axis of a free-standing solid cylindrical nanowire are evaluated in the dipole approximation. In this case, the allowed optical ... -
Optimal investment under inflation protection and optimal portfolio With stochastic wage income
(University of Botswana, www.ub.bw, 2017-05)This dissertation considers the optimal portfolio strategies for an investor that obtains stochastic income and gives out stochastic cash outflows under inflation protection. The Investor trades on a complete diffusion ...