Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4661248 | Topology and its Applications | 2006 | 27 Pages |
Abstract
An abstract scheme using particular types of relations on filters leads to general unifying results on stability under supremum and product of local topological properties. We present applications for Fréchetness, strong Fréchetness, countable tightness and countable fan-tightness, some of which recover or refine classical results, some of which are new. The reader may find other applications as well.
Related Topics
Physical Sciences and Engineering
Mathematics
Geometry and Topology