• Title/Summary/Keyword: fuzzy (r, s)-open set

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Fuzzy r-Generalized Almost Continuity on Fuzzy Generalized Topological Spaces (퍼지 일반화된 위상 공간에서 FUZZY r-GENERALIZED ALMOST CONTINUITY에 관한 연구)

  • Min, Won-Keun
    • Journal of the Korean Institute of Intelligent Systems
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    • v.20 no.2
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    • pp.257-261
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    • 2010
  • In this paper, we introduce the concept of fuzzy r-generalized almost continuous mapping and obtain some characterizations of such a mapping. In particular, we investigate characterizations for the fuzzy r-generalized almost continuity by using the concept of fuzzy r-generalized regular open sets.

Fuzzy r-minimal Preopen Sets And Fuzzy r-M Precontinuous Mappings On Fuzzy Minimal Spaces

  • Min, Won-Keun;Kim, Young-Key
    • Journal of the Korean Institute of Intelligent Systems
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    • v.20 no.4
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    • pp.569-573
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    • 2010
  • We introduce the concept of fuzzy r-minimal preopen set on a fuzzy minimal space. We also introduce the concept of fuzzy r-M precontinuous mapping which is a generalization of fuzzy r-M continuous mapping, and investigate characterization of fuzzy r-M precontinuity.

Mated Fuzzy Topological Spaces

  • Lee, Eun-Pyo;Im, Young-Bin
    • Journal of the Korean Institute of Intelligent Systems
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    • v.11 no.2
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    • pp.161-165
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    • 2001
  • We introduce the concept of mated fuzzy topological spaces and then investigate some of their properties.

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On Fuzzifying Nearly Compact Spaces

  • Zahran, A.M.;Sayed, O.R.;Abd-Allah, M. Azab;Mousa, A.K.
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.10 no.4
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    • pp.296-302
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    • 2010
  • This paper considers fuzzifying topologies, a special case of I-fuzzy topologies (bifuzzy topologies) introduced by Ying [16, (I)]. It investigates topological notions defined by means of regular open sets when these are planted into the frame-work of Ying's fuzzifying topological spaces (in ${\L}$ukasiewwicz fuzzy logic). The concept of fuzzifying nearly compact spaces is introduced and some of its properties are obtained. We use the finite intersection property to give a characterization of fuzzifying nearly compact spaces. Furthermore, we study the image of fuzzifying nearly compact spaces under fuzzifying completely continuous functions, fuzzifying almost continuity and fuzzifying R-map.