• 제목/요약/키워드: generalizations

검색결과 285건 처리시간 0.011초

퍼지 일반위상 공간에 관한 연구 (Fuzzy Generalized Topological Spaces)

  • 민원근
    • 한국지능시스템학회논문지
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    • 제19권3호
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    • pp.404-407
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    • 2009
  • 본 논문에서는 퍼지 일반-위상과 퍼지 일반-위상 공간의 개념을 소개한다. 퍼지 일반-위상은 smooth topology 와 Chang's fuzzy topology의 일반화된 개념이다. 퍼지 일반-위상의 일반적인 성질과 퍼지 일반-연속, 약 퍼지 일반-연속 함수의 개념과 성질을 조사한다.

WEAK BI-IDEALS OF NEAR-RINGS

  • Cho, Yong-Uk;Chelvam, T. Tamizh;Jayalakshmi, S.
    • 한국수학교육학회지시리즈B:순수및응용수학
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    • 제14권3호
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    • pp.153-159
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    • 2007
  • The notion of bi-ideals in near-rings was effectively used to characterize the near-fields. Using this notion, various generalizations of regularity conditions have been studied. In this paper, we generalize further the notion of bi-ideals and introduce the notion of weak bi-ideals in near-rings and obtain various characterizations using the same in left self distributive near-rings.

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Fuzzy Strongly r-Semineighborhoods

  • Lee, Seok-Jong;Lee, Seung-On;Park, Ju-Hui
    • 한국지능시스템학회논문지
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    • 제11권3호
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    • pp.275-279
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    • 2001
  • In this thesis, we introduce and investigate the notions of a fuzzy strongly r-semineighborhood and a fuzzy strongly r-quasi-semineighborhood in fuzzy topological spaces which are generalizations of a fuzzy strongly semineighborhood and a fuzzy strongly quasi-semineighborhood, respectively.

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Equivalent Formulations of Zorn's Lemma and Other Maximum Principles

  • Park, Sehie
    • 한국수학교육학회지시리즈A:수학교육
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    • 제25권3호
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    • pp.19-24
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    • 1987
  • In this paper, we give a result that maximum principles including Zorn's lemma can be regarded as various types of fixed point theorems. Our main application is that the well-known ordering principles in nonlinear analysis including the Bishop-Phelps argument and a number of its generalizations can be converted to fixed point theorems and vice versa. Consequently, we obtain new results and unify many known results.

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GENERALIZATION OF EXTENDED APPELL'S AND LAURICELLA'S HYPERGEOMETRIC FUNCTIONS

  • Khan, N.U.;Ghayasuddin, M.
    • 호남수학학술지
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    • 제37권1호
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    • pp.113-126
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    • 2015
  • Recently, Liu and Wang generalized Appell's and Lauricella's hypergeometric functions. Motivated by the work of Liu and Wang, the main object of this paper is to present new generalizations of Appell's and Lauricella's hypergeometric functions. Some integral representations, transformation formulae, differential formulae and recurrence relations are obtained for these new generalized Appell's and Lauricella's functions.

Non-associative fuzzy-relevance logics: strong t-associative monoidal uninorm logics

  • Yang, Eun-Suk
    • 논리연구
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    • 제12권1호
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    • pp.89-110
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    • 2009
  • This paper investigates generalizations of weakening-free uninorm logics not assuming associativity of intensional conjunction (so called fusion) &, as non-associative fuzzy-relevance logics. First, the strong t-associative monoidal uninorm logic StAMUL and its schematic extensions are introduced as non-associative propositional fuzzy-relevance logics. (Non-associativity here means that, differently from classical logic, & is no longer associative.) Then the algebraic structures corresponding to the systems are defined, and algebraic completeness results for them are provided. Next, predicate calculi corresponding to the propositional systems introduced here are considered.

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ON C-STIELTJES INTEGRAL OF BANACH-VALVED FUNCTIONS

  • Zhang, Xiaojie;Zhao, Dafang;Ye, Guoju
    • 한국수학교육학회지시리즈B:순수및응용수학
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    • 제14권2호
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    • pp.71-84
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    • 2007
  • In this paper, we define the C-Stieltjes integral of the functions mapping an interval [a,b] into a Banach space X with respect to g on [a,b], and the C-Stieltjes representable operators for the vector-valued functions which are the generalizations of the Henstock-Stieltjes representable operators. Some properties of the C-Stieltjes operators and the convergence theorems of the C-Stieltjes integral are given.

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A REFINEMENT OF LYAPUNOV-TYPE INEQUALITY FOR A CLASS OF NONLINEAR SYSTEMS

  • Kim, Yong-In
    • 한국수학교육학회지시리즈B:순수및응용수학
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    • 제18권4호
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    • pp.329-336
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    • 2011
  • Some new Lyapunov-type inequalities for a class of nonlinear differential systems, which are natural refinements and generalizations of the well-known Lyapunov inequality for linear second order differential equations, are given. The results of this paper cover some previous results on this topic.