Commun. Korean Math. Soc. 2003 Vol. 18, No. 2, 341-353 Printed June 1, 2003
Seok Jong Lee, Eun Pyo Lee Chungbuk National University, Seonam University
Abstract : As a generalizaton of the concepts of fuzzy strongly semiopen sets and fuzzy strongly semicontinuous maps, we introduce the concepts of fuzzy strong-ly $r$-semiopen sets and fuzzy strongly $r$-semicontinuous maps in fuzzy topology. Also we introduce fuzzy $r$-semiinterior and fuzzy $r$-semiclosure. By these concept, we characterize fuzzy strongly $r$-semicontinuous, fuzzy strong-ly $r$-semiopen and fuzzy strongly $r$-semiclosed maps.