Fuzzy sets, fuzzy s-open and s-closed mappings
Summary: Several properties of fuzzy semi-closure and fuzzy semi-interior of fuzzy sets, defined by \textit{A. M. Zahran} [Fuzzy Sets Syst. 116, No. 3, 353--359 (2000; Zbl 0995.54005)], are established and supported by counterexamples. We also study characterizations and properties of fuzzy semi-open and fuzzy semi-closed sets. Moreover, we define fuzzy s-open and fuzzy s-closed mappings and give some interesting characterizations.
scientific article; zbMATH DE number 5734342
scientific article