Browsing Department of Mathematics by Title

Now showing items 128-130 of 130

  • Ultrafilters and Compactification 

    Nxumalo, Mbekezeli Sibahle (UWC, 2020)
    In this thesis, we construct the ultrafilter space of a topological space using ultrafilters as points, study some of its properties and describe a method of generating compactifications through the ultrafilter space. As ...

  • Valuation of options for hedging against exchange rate exposure 

    Don, Marlon Junaide (University of the Western Cape, 2019)
    The risk associated with currency exposure is one of the main sources of risk in terms of internationally diversi ed portfolios. Controlling the risk is important for improving the performance of international investments. ...

  • Variances of purity within torsion-free Abelian groups 

    Van Ster, Lynnette (University of the Western Cape, 1994)
    In 1921, Prufer introduced the concept of a pure subgroup of an abelian group. This concept, which is applicable only to abelian groups, proved to be a very useful one. Subsequently, this concept has sparked off numerous ...