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Browsing Theses and Dissertations (Mathematical Sciences) by Type

Browsing Theses and Dissertations (Mathematical Sciences) by Type "Dissertation"

Now showing items 1-20 of 61

Algebraic and multilinear-algebraic techniques for fast matrix multiplication

Gouaya, Guy Mathias (2015)

This dissertation reviews the theory of fast matrix multiplication from a multilinear-algebraic point of view, as well as recent fast matrix multiplication algorithms based on discrete Fourier transforms over nite ...
Aperture photometry at the Unisa observatory; system evaluation via light curves of eclipsing binaries

Pieters, Vanessa (2015)

The University of South Africa has built a small observatory for teaching and research. The 35cm Schmidt-Cassegrain reflector and the SSP-5A photometer with Johnson UBV filters were used to evaluate the local possibilities ...
The application and empirical comparison of item parameters of Classical Test Theory and Partial Credit Model of Rasch in performance assessments

Mokilane, Paul Moloantoa (2014-05)

This study empirically compares the Classical Test Theory (CTT) and the Partial Credit Model (PCM) of Rasch focusing on the invariance of item parameters. The invariance concept which is the consequence of the principle ...
ARIMA forecasts of the number of beneficiaries of social security grants in South Africa

Luruli, Fululedzani Lucy (2011-12)

The main objective of the thesis was to investigate the feasibility of accurately and precisely fore- casting the number of both national and provincial bene ciaries of social security grants in South Africa, using simple ...
Aspects of bivariate time series

Seeletse, Solly Matshonisa (1994-11)

Exponential smoothing algorithms are very attractive for the practical world such as in industry. When considering bivariate exponential smoothing methods, in addition to the properties of univariate methods, ...
The Bring-Jerrard quintic equation, its solutions and a formula for the universal gravitational constant

Motlotle, Edward Thabo (2011-06)

In this research the Bring-Jerrard quintic polynomial equation is investigated for a formula. Firstly, an explanation given as to why finding a formula and the equation being unsolvable by radicals may appear contradictory ...
Canonical correlation analysis of aggravated robbery and poverty in Limpopo Province

Rwizi, Tandanai (2015-05)

The study was aimed at exploring the relationship between poverty and aggravated robbery in Limpopo Province. Sampled secondary data of aggravated robbery of- fenders, obtained from the South African Police (SAPS), ...
Compactness in categories and its application in different categories

Thulapersad, Sarah (1994-12)

In the paper [HSS] Herrlich, Salicrup and Strecker were able to show that Kuratowski / Mrowka's Theorem concerning compactness for topological spaces could be applied to a wider setting. In this dissertation, which is based ...
A comparative study of permutation procedures

Van Heerden, Liske (1994-11-30)

The unique problems encountered when analyzing weather data sets - that is, measurements taken while conducting a meteorological experiment- have forced statisticians to reconsider the conventional analysis methods and ...
Constructing programs, how children with Attention Deficit Hyperactivity Disorder (ADHD) learn to program

Pilkington, Colin Leon (2009-08)

Many learners find the study of introductory computer programming difficult. This is also true of children with attention deficit hyperactivity disorder (ADHD), and we need an improved understanding of how they learn ...
The effect of scaling in the understanding of Algebraic graphs for grade 9 (form B) learners.

Ijeh, Sunday Bomboi (2009-08-25)

The teaching and learning of algebraic linear graphs in the school have experience problems with regards to understanding this topic. The learner's inability to understand algebraic linear graphs as a result of scaling was ...
Exploring teachers' mathematical meanings for teaching trigonometric ratios and functions to grade 10 learners in the Tshwane South District of Gauteng Province

Mphuthi, Gabriel Tshepo (2019-11)

This study aimed to explore the mathematical meanings possibly entertained by Grade 10 teachers on the particular trigonometric topics of ratios and functions. The quest to embark on this exploration was primarily ...
Factors influencing college students' attitudes toward technology

Kalanda, Kasongo (2009-08-25)

The present study assessed the views of students on school-related determinants with respect to liking or disliking technology. In determining students' views, two self-report instruments, the Classroom Learning Environment ...
Forecasting annual tax revenue of the South African taxes using time series Holt-Winters and ARIMA/SARIMA Models

Makananisa, Mangalani P. (2015-10)

This study uses aspects of time series methodology to model and forecast major taxes such as Personal Income Tax (PIT), Corporate Income Tax (CIT), Value Added Tax (VAT) and Total Tax Revenue(TTAXR) in the South African ...
The formation of the cerebrospinal fluid: a case study of the cerebrospinal fluid system

Faleye, Sunday (2009-08-25)

It was generally accepted that the rate of formation of cerebrospinal °uid (CSF) is independent of intraventricular pressure [26], until A. Sahar and a host of other scientists challenged this belief. A. Sahar substantiated ...
Fourier-plane modeling of the jet in the nucleus of galaxy M81

Ramessur, Arvind (2017-12)

The mildly active nuclear region in the galaxy M81 (henceforth, M81‹) is one of the nearest low-luminosity active galactic nuclei (LLAGN) whose structure is marginally resolved when probed with Very Long Baseline ...
Frames of ideals of commutative f-rings

Sithole, Maria Lindiwe (2018-09)

In his study of spectra of f-rings via pointfree topology, Banaschewski [6] considers lattices of l-ideals, radical l-ideals, and saturated l-ideals of a given f-ring A. In each case he shows that the lattice of each of ...
High level waste system impacts from acid dissolution of sludge

Ketusky, Edward Thomas (2009-08-25)

Currently at the Savannah River Site (SRS), there are fifteen single-shell, 3.6-million liter tanks containing High Level Waste. To close the tanks, the sludge must be removed. Mechanical methods have had limited success. ...
Hybrid numerical methods for stochastic differential equations

Chinemerem, Ikpe Dennis (2009-02)

In this dissertation we obtain an e cient hybrid numerical method for the solution of stochastic di erential equations (SDEs). Speci cally, our method chooses between two numerical methods (Euler and Milstein) over a ...
The influence of excel modelling professional development on conceptual understanding of periodicity of trigonometric functions

Lupahla, Nhlanhla (2020-01)

Utilising an embedded mixed methods research design, this study investigated the influence of an Excel-based modelling (EBM) teacher professional development on learners’ conceptual understanding (LCU) of periodicity of ...

Browsing Theses and Dissertations (Mathematical Sciences) by Type "Dissertation"

Browsing Theses and Dissertations (Mathematical Sciences) by Type "Dissertation"

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