Now showing items 55-65 of 65

    • Queueing and communication networks governed by generalised Lindley-Loynes equations. 

      Rose, David Michael. (1993)
      Several decades after A.K. Erlang originated the theory of queues and queueing networks, D.V. Lindley added impetus to the development of this field by determining a recursive relation for waiting times. Part I of this ...
    • Real options : duopoly dynamics with more than one source of randomness. 

      MacKenzie, Natalie. (2009)
      The valuation of real options has been of interest for some time. Recently, the model has been revised to include more than one source of randomness, e.g. Paxson and Pinto (2005). In this dissertation, we present a model ...
    • Remediation of first-year mathematics students' algebra difficulties. 

      Campbell, Anita. (2009)
      The pass rate of first-year university mathematics students at the University of KwaZulu-Natal (Pietermaritzburg Campus) has been low for many years. One cause may be weak algebra skills. At the time of this study, revision ...
    • Representation of regular formal languages. 

      Safla, Aslam. (2014-05-17)
      This dissertation presents three different approaches to representing Regular Formal languages, i.e., regular expressions, finite acceptors and regular grammars. We define how each method is used to represent the language, ...
    • Residually small varieties and commutator theory. 

      Swart, Istine Rodseth. (2000)
      Chapter 0 In this introductory chapter, certain notational and terminological conventions are established and a summary given of background results that are needed in subsequent chapters. Chapter 1 In this ...
    • Semiperfect CFPF rings. 

      Francis, Donald Nicholas. (1987)
      The Wedderburn-Artin Theorem (1927) characterised semisimple Artinian rings as finite direct products of matrix rings over division rings. In attempting to generalise Wedderburn's theorem, the natural starting point will ...
    • Some aspects of semirings of functions. 

      Nsayi, Jissy Nsonde. (2014-02-25)
      A well known fact of classical analysis is that the Stone- Cech compacti cation of a Tychono space is achieved as the structure space of the commutative unitary ring of real valued continuous functions de ned on it. An ...
    • Some models of relativistic radiating stars. 

      Mahlatji, Matsimele Ngwalodi . (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. ...
    • Spanning trees : eigenvalues, special numbers, and the tree-cover ratios, asymptotes and areas of graphs. 

      Adewusi, Fadekemi Janet. (2014)
      This dissertation deals with spanning trees associated with graphs. The number of spanning trees of a graph can be found by considering the eigenvalues of the Laplacian matrix associated with that graph. Special classes ...
    • Spherically symmetric solutions in relativistic astrophysics. 

      John, Anslyn James. (2002)
      In this thesis we study classes of static spherically symmetric spacetimes admitting a perfect fluid source, electromagnetic fields and anisotropic pressures. Our intention is to generate exact solutions that model the ...
    • Using artefacts to support an embodied approach to learning trigonometry : a case study of grade 10 learners. 

      Niranjan, Caresse. (2013)
      The purpose of this study was to explore the role of artefacts (manipulatives) in the teaching and learning of trigonometric ratios in grade 10. The study focused on how the use of manipulatives aided learners’ mathematical ...