| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4661231 | Topology and its Applications | 2007 | 6 Pages |
Abstract
As applications of productivity of coreflective classes of topological spaces, the following results will be proved: (1) Characters of points of βN∖N are not smaller than any submeasurable cardinal less or equal to ω2. (2) If κ is a submeasurable cardinal and S is a sequential fan with κ many spines then the tightness of the κ-power of S is equal to κ. In fact, a little more general results are proved.
Related Topics
Physical Sciences and Engineering
Mathematics
Geometry and Topology
