• Title/Summary/Keyword: fuzzy r-M open mapping

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FUZZY γ-MINIMAL β-OPEN SETS ON FUZZY MINIMAL SPACES

  • Min, Won-Keun;Kim, Myeong-Hwan
    • The Pure and Applied Mathematics
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    • v.19 no.3
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    • pp.263-271
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    • 2012
  • We introduce the concept of fuzzy $r$-minimal ${\beta}$-open set on a fuzzy minimal space and basic some properties. We also introduce the concept of fuzzy $r-M$ ${\beta}$-continuous mapping which is a generalization of fuzzy $r-M$ continuous mapping and fuzzy $r-M$ semicontinuous mapping, and investigate characterization for the continuity.

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.

Fuzzy r-Compactness on Fuzzy r-Minimal Spaces

  • Kim, Jung-Il;Min, Won-Keun;Yoo, Young-Ho
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.9 no.4
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    • pp.281-284
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    • 2009
  • In [8], we introduced the concept of fuzzy r-minimal structure which is an extension of smooth fuzzy topological spaces and fuzzy topological spaces in Chang's sense. And we also introduced and studied the fuzzy r-M continuity. In this paper, we introduce the concepts of fuzzy r-minimal compactness on fuzzy r-minimal compactness and nearly fuzzy r-minimal compactness, almost fuzzy r-minimal spaces and investigate the relationships between fuzzy r-M continuous mappings and such types of fuzzy r-minimal compactness.

SOME RESULTS ON FUZZY BANACH SPACES

  • SAADATI R.;VAEZPOUR S. M.
    • Journal of applied mathematics & informatics
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    • v.17 no.1_2_3
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    • pp.475-484
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    • 2005
  • The main aim of this paper is to consider the fuzzy norm, define the fuzzy Banach spaces, its quotients and prove some theoremes and in particular Open mapping and Closed graph theoremes on these spaces.