Geodesic
On weak forms of preopen and preclosed functions
Archivum mathematicum, Tome 40 (2004) no. 2, pp. 119-128 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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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.
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.
Classification : 54A40, 54C08, 54C10, 54D10
Keywords: preopen sets preclosed sets; weakly preclosed functions; extremally disconnected spaces; quasi H-closed spaces 
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Caldas, Miguel; Navalagi, Govindappa. On weak forms of preopen and preclosed functions. Archivum mathematicum, Tome 40 (2004) no. 2, pp. 119-128. http://geodesic.mathdoc.fr/item/ARM_2004_40_2_a1/

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