G. B. Navalagi, Department of Mathematics, KLE Societys, G. H.College,
Haveri-581110, Karnataka, India
E-mail. gmamccs@vm.uff.br gnavalagi@hotmail.com
Abstract.
In this paper we introduce two classes of functions called weakly
preopen and weakly preclosed functions as generalization of
weak openness and weak closedness due to [26] and [27] respectively. We
obtain their characterizations, their basic properties and their relationshisps
with other types of functions between topological spaces.
AMSclassification. Primary: 54A40, 54C10, 54D10; Secondary: 54C08.
Keywords. Preopen sets preclosed sets, weakly preclosed
functions, extremally disconnected spaces, quasi H-closed spaces.