1. On relatively almost countably compact subsets
- Creator:
- Song, Yan-Kui and Zheng, Shu-Nian
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- countably compact space, almost countably compact space, and relatively almost countably compact subset
- Language:
- English
- Description:
- A subset Y of a space X is almost countably compact in X if for every countable cover U of Y by open subsets of X, there exists a finite subfamily V of U such that Y ⊆ U V . In this paper we investigate the relationship between almost countably compact spaces and relatively almost countably compact subsets, and also study various properties of relatively almost countably compact subsets.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public