• Refinable vector splines and multi-wavelets with shortest matrix filters 

      Ranirina, Dinna (Stellenbosch : Stellenbosch University, 2018-03)
      ENGLISH ABSTRACT : A widely used class of basis functions in signal analysis is obtained from the dilation and integer shifts of a given (compactly supported) wavelet ψ : R → R, by means of which a (scalar) signal can ...
    • Oriented 123-TQFTs via String-Nets and State-Sums 

      Goosen, Gerrit (Stellenbosch : Stellenbosch University, 2018-03)
      ENGLISH ABSTRACT :In a series of papers Bartlett, Douglas, Schommer-Pries, and Vicary discovered a finite generators-and-relations presentation of the oriented bordism bicategory. This simplifies the task of finding ...