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

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

(With L. Jones and D. Strauss) The relationships among many notions of largeness for subsets of a semigroup (to appear in Semigroup Forum)

A history of central sets (to appear in Ergodic Theory and Dynamical Systems)

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

(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

(With W. Brian) Factoring a minimal ultrafilter into a thick part and a syndetic part