Abstract
In this paper we introduce and study θ-continuous, almost strongly θ-continuous, weakly δ-continuous and weakly continuous mappings in the light of quasi-coincidence due to Pu and Liu (1980) in fuzzy bitopological spaces. By making use of quasi-neighbourhoods (Pu and Liu, 1980), θ-neighbourhoods (Sampath Kumar, 1997) and δ-neighbourhoods (Sampath Kumar, 1997) we investigate the characterizations and properties of these mappings. Finally, we correlate all these mappings along with fuzzy pairwise continuous mappings so as to determine their mutual relationships under suitable conditions.
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