• Title/Summary/Keyword: Fuzzy Integral

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ON THE PETTIS INTEGRAL OF FUZZY MAPPINGS IN BANACH SPACES

  • Park, Chun-Kee
    • Communications of the Korean Mathematical Society
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    • v.22 no.4
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    • pp.535-545
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    • 2007
  • In this paper, we introduce the Pettis integral of fuzzy mappings in Banach spaces using the Pettis integral of closed set-valued mappings. We investigate the relations between the Pettis integral, weak integral and integral of fuzzy mappings in Banach spaces and obtain some properties of the Pettis integral of fuzzy mappings in Banach spaces.

ON THE DEBREU INTEGRAL OF FUZZY MAPPINGS IN BANACH SPACES

  • Park, Chun-Kee
    • The Pure and Applied Mathematics
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    • v.16 no.3
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    • pp.315-326
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    • 2009
  • In this paper, we introduce Debreu integral of fuzzy mappings in Banach spaces in terms of the Debreu integral of set-valued mappings, investigate properties of Debreu integral of fuzzy mappings in Banach spaces and obtain the convergence theorem for Debreu integral of fuzzy mappings in Banach spaces.

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A note on distance measure and similarity measure defined by Choquet integral on interval-valued fuzzy sets (구간치 퍼지집합 상에서 쇼케이적분에 의해 정의된 거리측도와 유사측도에 관한 연구)

  • Jang, Lee-Chae
    • Journal of the Korean Institute of Intelligent Systems
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    • v.17 no.4
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    • pp.455-459
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    • 2007
  • Interval-valued fuzzy sets were suggested for the first time by Gorzafczany(1983) and Turksen(1986). Based on this, Zeng and Li(2006) introduced concepts of similarity measure and entropy on interval-valued fuzzy sets which are different from Bustince and Burillo(1996). In this paper, by using Choquet integral with respect to a fuzzy measure, we introduce distance measure and similarity measure defined by Choquet integral on interval-valued fuzzy sets and discuss some properties of them. Choquet integral is a generalization concept of Lebesgue inetgral, because the two definitions of Choquet integral and Lebesgue integral are equal if a fuzzy measure is a classical measure.

CONVERGENCE THEOREMS FOR DENJOY-PETTIS INTEGRABLE FUZZY MAPPINGS

  • Park, Chun-Kee
    • Korean Journal of Mathematics
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    • v.18 no.3
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    • pp.229-241
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    • 2010
  • In this paper, we introduce the Denjoy-Pettis integral of fuzzy mappings in Banach spaces and obtain some properties of the Denjoy-Pettis integral of fuzzy mappings and the convergence theorems for Denjoy-Pettis integrable fuzzy mappings.

THE PAN-GENERALIZED FUZZY INTEGRAL OF A COMMUTATIVE ISOTONIC SEMIGROUP-VALUED FUNCTION

  • Yoon, Ju Han;Eun, Gwang Sik;Lee, Byeong Moo
    • Journal of the Chungcheong Mathematical Society
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    • v.11 no.1
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    • pp.173-183
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    • 1998
  • In this paper, we introduce the pan-generalized fuzzy integral of a commutative isotonic semigroup-valued function, which is generalization of the (G) fuzzy integral and investigate the fundamental properties of this kind of fuzzy integral.

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The existence and uniqueness of fuzzy solutions for semilinear fuzzy integrodifferential equations using integral contractor

  • Lee, Bu-Young;Kwun, Young-Chel;Ahn, Young-Chel;Park, Jin-Han
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.9 no.4
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    • pp.339-342
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    • 2009
  • In this paper, we investigate the existence and uniqueness of fuzzy solutions for semilinear fuzzy integrodifferential equations using integral contractor. The notion of 'bounded integral contractor', introduced by Altman[1], is weaker than Lipschitz condition.

ON HENSTOCK INTEGRAL OF FUZZY MAPPINGS IN BANACH SPACES

  • Oh, Mee Na;Park, Chun-Kee
    • Korean Journal of Mathematics
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    • v.17 no.3
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    • pp.257-270
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    • 2009
  • In this paper we introduce the Henstock integral of fuzzy mappings in Banach spaces as a generalization of the Henstock integral of set-valued mappings and investigate some properties of it.

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CONVERGENCE THEOREM FOR KURZWEIL-HENSTOCK-PETTIS INTEGRABLE FUZZY MAPPINGS

  • Park, Chun-Kee
    • Journal of the Chungcheong Mathematical Society
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    • v.23 no.2
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    • pp.279-291
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    • 2010
  • In this paper, we introduce the Kurzweil-Henstock-Pettis integral of fuzzy mappings in Banach spaces in terms of the Kurzweil-Henstock-Pettis integral of set-valued mappings and obtain some properties of the Kurzweil-Henstock-Pettis integral of fuzzy mappings in Banach spaces and the convergence theorem for Kurzweil-Henstock-Pettis integrable fuzzy mappings.