Now showing items 1-5 of 23

  • A note on steady flow into a submerged point sink

    Hocking, Graeme Charles; Forbes, Lawrence K.; Stokes, Tim E. (Cambridge University Press, 2014)
    The steady, axisymmetric flow induced by a point sink (or source) submerged in an unbounded inviscid fluid is computed. The resulting deformation of the free surface is obtained, and a limit of steady solutions is found ...
  • Agreeable semigroups

    Jackson, Marcel; Stokes, Tim E. (Academic Press, 2003)
    This paper concerns the theory of partial maps under composition and more generally, the RC-semigroups introduced by Jackson and Stokes [Semigroup Forum 62 (2001) 279–310] (semigroups with a unary operation called (right) ...
  • Axioms for function semigroups with agreement quasi-order

    Stokes, Tim E. (Springer, 2011)
    The agreement quasi-order on pairs of (partial) transformations on a set X is defined as follows: (f, g) ≼ (h, k) if whenever f, g are defined and agree, so do h, k. We axiomatize function semigroups and monoids equipped ...
  • Comparison semigroups and algebras of transformations

    Stokes, Tim E. (Springer, 2010)
    We characterize algebras of transformations on a set under the operations of composition and the pointwise switching function defined as follows: (f,g)[h,k](x)=h(x) if f(x)=g(x), and k(x) otherwise. The resulting algebras ...
  • Constellations and their relationship with categories

    Gould, Victoria; Stokes, Tim E. (Springer, 2017)
    Constellations are partial algebras that are one-sided generalisations of categories. Indeed, we show that a category is exactly a constellation that also satisfies the left-right dual axioms. Constellations have previously ...

Showing up to 5 theses - most recently added to Research Commons first.

  • Critical sets of full Latin squares

    Raass, Petelo Vaipuna (University of Waikato, 2016)
    This thesis explores the properties of critical sets of the full n-Latin square and related combinatorial structures including full designs, (m,n,2)-balanced Latin rectangles and n-Latin cubes. In Chapter 3 we study ...