International Journal of Mathematics and Mathematical Sciences 
Volume 17 (1994), Issue 3, Pages 597-606
doi:10.1155/S0161171294000840

Measures of Lindelof and separability in approach spaces

R. Baekeland1 and R. Lowen2

 1Department of Statistics, University of Ghent, Hoveniersberg 4, Ghent 9000, Belgium
2Department of Mathematics, University of Antwerp, Groenenborgerlaan 171, Antwerp 2018, Belgium
Received 16 July 1992; Revised 10 August 1993

Abstract

In this paper we introduce the notions of separability and Lindelöf in approach spaces and investigate their behaviour under products and subspaces.