** Recent results on partition regularity of infinite matrices**
(to appear in *Connections in Discrete Mathematics*, Cambridge
University Press)

(With K. Pleasant)
**Preserving integer images of matrices** (to appear in *Integers*)

** Research of Wis Comfort on ultrafilters and the Stone-Cech
compactification** (to appear in *Topology and its Applications*)

(With D. Strauss)
** Image partition regularity of matrices over commutative semigroups**

(With L. Jones and D. Strauss)
** The relationships among many notions
of largeness for subsets of a semigroup**

(With D. Strauss)
** Sets and mappings in beta S which are not Borel**

(With D. Strauss)
** Some new examples of infinite image partition regular
matrices**