| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4660161 | Topology and its Applications | 2008 | 9 Pages |
Abstract
Three approaches to a direct construction of Urysohn universal space are compared, namely those of Urysohn, Hausdorff and Katětov. More details are devoted to the unpublished Hausdorff's approach that is shown to work in a more general situation, too.
Related Topics
Physical Sciences and Engineering
Mathematics
Geometry and Topology
