Scholarlink

<p>We study when a space can be covered by a small number of countably tight subspaces. In addition, we present counterexamples related to the almost tightness and weak tightness numbers, answering a question of Nathan Carlson.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Covering a space with a small number of countably tight subspaces

  • 期刊论文

  • 发表日期：

    2025年3月12日

查看全文
  • Santi Spadaro,
  • Paul Szeptycki

摘要

We study when a space can be covered by a small number of countably tight subspaces. In addition, we present counterexamples related to the almost tightness and weak tightness numbers, answering a question of Nathan Carlson.