Browsing by Author "Stokes, Tim E."
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Constellations and their relationship with categories
Gould, Victoria; Stokes, Tim E. (Springer, 2017)Constellations are partial algebras that are onesided generalisations of categories. Indeed, we show that a category is exactly a constellation that also satisfies the leftright dual axioms. Constellations have previously ... 
Dsemigroups and constellations
Stokes, Tim E. (Springer, 2017)In a result generalising the Ehresmann–Schein–Nambooripad Theorem relating inverse semigroups to inductive groupoids, Lawson has shown that Ehresmann semigroups correspond to certain types of ordered (small) categories he ... 
Domain and range operations in semigroups and rings
Stokes, Tim E. (Taylor and Francis, 2015)A Dsemigroup S is a semigroup equipped with an operation D satisfying laws asserting that for a ∈ S, D(a) is the smallest e in some set of idempotents U ⊆ S for which ea = a. Dsemigroups correspond to leftreduced ... 
The effect of surface tension on free surface flow induced by a point sink in a fluid of finite depth
Hocking, Graeme Charles; Nguyen, H.H.N.; Stokes, Tim E.; Forbes, L.K. (Elsevier Ltd, 2017)Solutions are presented to the problem of steady, axisymmetric flow of an inviscid fluid into a point sink. The fluid is of finite depth and has a free surface. Two numerical schemes, a spectral method and an integral ... 
The effect of surface tension on freesurface flow induced by a point sink
Hocking, Graeme Charles; Nguyen, H.H.N.; Forbes, L.K.; Stokes, Tim E. (Cambridge University Press, 2016)The steady, axisymmetric flow induced by a point sink (or source) submerged in an inviscid fluid of infinite depth is computed and the resulting deformation of the free surface is obtained. The effect of surface tension ...