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Now showing items 81-90 of 90

#### Exact solutions for spherical relativistic models.

(2011)

In this thesis we study relativistic models of gravitating
uids with heat
ow and electric
charge. Firstly, we derive the model of a charged shear-free spherically symmetric cosmological
model with heat
ow. The ...

#### Inhomogeneous solutions to the Einstein equations.

(2007)

In this dissertation we consider spherically symmetric gravitational fields that arise in relativistic astrophysics and cosmology. We first present a general review of static spherically symmetric spacetimes. aand highlight ...

#### Explicit models for spherical static fluids in Einstein-Gauss-Bonnet gravity.

(2016)

In this research, we explore modifications to the Einstein-Hilbert action by examining
exact barotropic distributions in Einstein-Gauss-Bonnet gravity (EGB). We
consider exact solutions of interior models in stars in ...

#### Some models of relativistic radiating stars.

(2012)

In this dissertation we study radiating stars in strong gravitational elds. We generate
new classes of exact solutions to the Einstein eld equations and the boundary condition
applicable to radiating relativistic stars. ...

#### A classical approach for the analysis of generalized linear mixed models.

(2004)

Generalized linear mixed models (GLMMs) accommodate the study of overdispersion and correlation inherent in hierarchically structured data. These models are an extension of generalized linear models (GLMs) and linear mixed ...

#### Connectedness and the hyperspace of metric spaces.

(2015)

One of the prime motivations for studying hyperspaces of a metric space is to understand the
original space itself. The hyperspace of a metric space X is the space 2X of all non-empty
closed bounded subsets of it, endowed ...

#### Exploring Grade 9 Mathematics teachers’ usage of the curriculum planner and tracker in secondary schools in the ILembe and Pinetown districts.

(2017)

This study attempted to determine the extent to which Grade 9 mathematics teachers, from a sample of six schools, have utilised the Jika iMfundo Curriculum Planner and Tracker (CPT), formulated by the Programme to Improve ...

#### An exploration of the integration of technology by mathematics teachers: the case of 10 schools in KwaZulu-Natal under Umlazi District.

(2020)

This interpretive qualitative study sought to explore the integration of technology by mathematics teachers in Umlazi district of KwaZulu-Natal province. A purposive non-probability sample of ten teachers from ten different ...

#### An examination of the use of pragmatic learner-centred pedagogy (LCP) in the teaching of mathematics in primary schools in Nhlangano-Swaziland.

(2016)

The purpose of this study was to investigate the use of pragmatic learner-centred pedagogy in the teaching of Mathematics in primary schools in Nhlangano, Swaziland. The aims of the study were to examine the teachers’ ...

#### Computer analysis of equations using Mathematica.

(2001)

In this thesis we analyse particular differential equations that arise in physical situations.
This is achieved with the aid of the computer software package called
Mathematica. We first describe the basic features of ...