Authors: L. Xie 1 and P. Yan 1
View More View Less
  • 1 Department of Mathematics Wuyi University Jiangmen 529020 P. R. China
Restricted access

Abstract  

We investigate the relations between decreasing sequences of sets and the insertion of semi-continuous functions, and give some characterizations of countably metacompact spaces, countably paracompact spaces, monotonically countably paracompact spaces (MCP), monotonically countably metacompact spaces (MCM), perfectly normal spaces and stratifiable spaces.

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Aug 2020 1 0 0
Sep 2020 0 0 0
Oct 2020 0 0 0
Nov 2020 0 0 0
Dec 2020 0 0 0
Jan 2021 0 0 0
Feb 2021 0 0 0