• 제목/요약/키워드: fuzzy (r, s)-semiopen

검색결과 17건 처리시간 0.019초

FUZZY STRONGLY (r, s)-PREOPEN AND PRECLOSED MAPPINGS

  • Lee, Seok-Jong;Kim, Jin-Tae
    • 대한수학회논문집
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    • 제26권4호
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    • pp.661-667
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    • 2011
  • In this paper, we introduce the notions of fuzzy strongly (r, s)-preopen and preclosed mappings on intuitionistic fuzzy topological spaces in $\check{S}$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.

Pairwise semicontinuous mapping in smooth bitopological spaces

  • Lee, Eun-Pyo
    • 한국지능시스템학회논문지
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    • 제12권3호
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    • pp.269-274
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    • 2002
  • We introduce (${\tau}_i$, ${\tau}_j$) fuzzy (r,s)-semiclosures and (${\tau}_i$, ${\tau}_j$)-fuzzy (r,s)-semiinteriors. Using the notions, we investigate some of characteristic properties of fuzzy pairwise (r,s)-semicontinuous, fuzzy pairwise (r,s)-semiopen and fuzzy pairwise (r,s)-semiclosed mappings.