Some Results On G-functions And Weak G-functions

In this paper, we give a new characterization of metrizable spaces in terms of g-functions to answer Nagata's question and equivalent characterizations of -spaces , spaces with - CP cs-network in terms of g-functions. We give weak g- functions as the generalizations of g-functions and CWBC-map, and we characterize some metrizable spaces in terms of weak g-functions.