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Commun. Korean Math. Soc. 2011; 26(4): 661-667

Printed December 1, 2011

https://doi.org/10.4134/CKMS.2011.26.4.661

Copyright © The Korean Mathematical Society.

Fuzzy strongly $(r, s)$-preopen and preclosed mappings

Seok Jong Lee and Jin Tae Kim

Chungbuk National University, Chungbuk National University

Abstract

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In this paper, we introduce the notions of fuzzy strongly $(r, s)$-preopen and preclosed mappings on intuitionistic fuzzy topological spaces in \v{S}ostak's sense. The relationships among fuzzy $(r, s)$-open, fuzzy strongly $(r, s)$-semiopen, fuzzy $(r, s)$-preopen, and fuzzy strongly $(r, s)$-preopen mappings are discussed. The characterizations for the fuzzy strongly $(r, s)$-preopen and preclosed mappings are obtained.

Keywords: fuzzy strongly $(r, s)$-preopen, fuzzy strongly $(r, s)$-preclosed

MSC numbers: 54A40

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