Set Theory and its Applications [electronic resource] : Proceedings of a Conference held at York University, Ontario, Canada, Aug. 10–21, 1987 / edited by Juris Steprāns, Stephen Watson.

Spaces of ideals of partial functions -- Remarks on partition ordinals -- Applications of superperfect forcing and its relatives -- Towards a structure theory for ideals on P?? -- Compact spaces of countable tightness in the Cohen model -- Two remarks about analytic sets -- Saturated ideals obtained via restricted iterated collapse of huge cardinals -- Ultrafilters and ramsey theory — An update -- Concerning stationary subsets of [?]<? -- When hereditarily collectionwise Hausdorffness implies regularity -- Classes of compact sequential spaces -- Special non-special N1-trees -- Consistency of positive partition theorems for graphs and models -- Topological problems for set-theorists -- A beginning for structural properties of ideals on P??.

The Set Theory and Applications meeting at York University, Ontario, featured both contributed talks and a series of invited lectures on topics central to set theory and to general topology. These proceedings contain a selection of the resulting papers, mostly announcing new unpublished results.