Spaces not distinguishing convergences of real-valued functions

Abstract

In [Topology Appl. 41 (1991) 25] we have introduced the notion of a wQN-space as a space in which for every sequence of continuous functions pointwisely converging to $\text{0}$ there is a subsequence quasi-normally converging to $\text{0}$. In the present paper we continue this investigation and generalize some concepts touched there. The content is a variety of notions and relationships among them. The result is another scale in the investigation of smallness and the question is how this scale fits with other known scales and whether all relations in it are proper.