G. B. Navalagi, Department of Mathematics, KLE Societys, G. H.College,
Haveri-581110, Karnataka, India
E-mail. email@example.com firstname.lastname@example.org
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  and  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.