| Authors: | Todorčević, Stevo | Affiliations: | Mathematical Institute of the Serbian Academy of Sciences and Arts | Title: | Calibres of first countable spaces | Journal: | Topology and its Applications | Volume: | 57 | Issue: | 2-3 | First page: | 317 | Last page: | 319 | Issue Date: | 25-May-1994 | ISSN: | 0166-8641 | DOI: | 10.1016/0166-8641(94)90058-2 | Abstract: | We show that there is a first countable space X such that X2 has an uncountable point-finite family of open sets but X itself cannot have such a family. |
Keywords: | Caliber | First countable | Point-finite | Publisher: | Elsevier |
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