1. Introduction
In [1], Császár introduced the notions of generalized neighborhood sys-
tems and generalized topological spaces. He also introduced the notions of
continuous functions and associated interior and closure operators on gen-
eralized neighborhood systems and generalized topological spaces. In par-
ticular, he investigated characterizations of generalized continuous functions
(= (g; g0)-continuous functions) in [1].
In [4], the author introduced the notion of weak (g; g0)-continuity on
GTS's which is a generalization of (g; g0)-continuity, and investigated char-
acterizations of such functions. In this paper, we introduce the notion ofalmost (g; g0)-continuity and investigate properties of such functions and re-lationships among (g; g0)-continuity, almost (g; g0)-continuity and weak
(g; g0)-continuity.
Key words and phrases: almost (g; g0)-continuous, weakly (g; g0)-continuous, (g; g0)-continuous.
2000 Mathematics Subject Classication: 54A05.02365294/$ 20.00 c ° 2009 Akadémiai Kiadó, Budapest