A disjointly tight irresolvable space

被引：1

作者：

Bella, Angelo ^{[1
]}

Hrusak, Michael ^{[2
]}

机构：

[1] Univ Catania, Dept Math & Comp Sci, Viale A Doria 6, I-95125 Catania, Italy

[2] Univ Nacl Autonoma Mexico, Ctr Ciencias Matemat, Campus Morelia, Morelia 58089, Michoacan, Mexico

来源：

APPLIED GENERAL TOPOLOGY | 2020年 / 21卷 / 02期

关键词：

irresolvable; disjointly tight; empty interior tightness;

D O I：

10.4995/agt.2020.13836

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

In this short note we prove the existence (in ZFC) of a completely regular countable disjointly tight irresolvable space by showing that every sub-maximal countable dense subset of 2(c) is disjointly tight.

引用

页码：326 / 329

页数：4

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