Some notes on Quasi-Lindelof spaces
In this note we address a problem that was suggested by Petra Staynova in  regarding quasi-Lindelof spaces, and continue to study topological properties of quasi-Lindelof spaces. In particular, we construct an example of a Tychonoff weakly Lindelof space which is not quasi-Lindelof.
Mathematics Subject Classication (2010): 54D20, 54E18.
Key words: Lindelof, almost Lindelof, weakly Lindelof, quasi-Lindelof.