Acta Mathematica Hungarica

, Volume 89, Issue 3, pp 211–219

Quasi-Normal Spaces and πg-Closed Sets

  • J. Dontchev
  • T. Noiri
Article

DOI: 10.1023/A:1010607824929

Cite this article as:
Dontchev, J. & Noiri, T. Acta Mathematica Hungarica (2000) 89: 211. doi:10.1023/A:1010607824929

Abstract

We introduce the notion of πg-closed sets and use it to obtain a characterization and preservation theorems of quasi-normal spaces.

Copyright information

© Akadémiai Kiadó, Budapest 2000

Authors and Affiliations

  • J. Dontchev
    • 1
  • T. Noiri
    • 2
  1. 1.Department of MathematicsUniversity of HelsinkiHelsingin YliopistoFinland
  2. 2.Department of MathematicsYatsushiro College of TechnologyKumamotoJapan