Abstract
In this paper, we introduce the notion of fuzzy (r; s)- S1-pre-semicontinuous mappings on intuitionistic fuzzy topological spaces in Sostak's sense. The relationship between fuzzy (r; s)-pre-semicontinuous and fuzzy (r; s)-S1-pre-semicontinuous mapping is discussed. The characterizations for the fuzzy (r; s)- S1-pre-semicontinuous mappings are obtained.
