• 제목/요약/키워드: Fixed point theorems

검색결과 427건 처리시간 0.023초

SOME COMMON FIXED POINT THEOREMS FOR GENERALIZED f-WEAKLY CONTRACTIVE MAPPINGS

  • Chandok, Sumit
    • Journal of applied mathematics & informatics
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    • 제29권1_2호
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    • pp.257-265
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    • 2011
  • In this paper, we first prove a common fixed point theorem for generalized nonlinear contraction mappings in complete metric spaces there by generalizing and extending some known results. Then we present this result in the context of ordered metric spaces by using monotone non-decreasing mapping.

COMMON FIXED POINT THEOREM IN FUZZY METRIC SPACE USING CONTROL FUNCTION

  • Kumar, Amit;Vats, Ramesh Kumar
    • 대한수학회논문집
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    • 제28권3호
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    • pp.517-526
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    • 2013
  • We give a fixed point theorem for complete fuzzy metric space which generalizes fuzzy Banach contraction theorems established by V. Gregori and A. Spena [Fuzzy Sets and Systems 125 (2002), 245-252] using notion of altering distance, initiated by Khan et al. [Bull. Austral. Math. Soc. 30 (1984), 1-9] in metric spaces.

Fixed Point Theorems for Weakly Compatible Functions using (JCLR) Property in Intuitionistic Fuzzy Metric Space

  • Park, Jong Seo
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제12권4호
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    • pp.296-299
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    • 2012
  • In this paper, we give definitions for common limit in the range property of mappings and obtain common fixed point theorem for a pair of weakly compatible functions in intuitionistic fuzzy metric space using the joint common limit in the range property of mappings(shortly, (JCLR) property). Our results improve and generalize results of Chauhan et al[1].

COMMON COUPLED FIXED FOINT THEOREMS FOR NONLINEAR CONTRACTIVE CONDITION ON INTUITIONISTIC FUZZY METRIC SPACES WITH APPLICATION TO INTEGRAL EQUATIONS

  • Deshpande, Bhavana;Sharma, Sushil;Handa, Amrish
    • 한국수학교육학회지시리즈B:순수및응용수학
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    • 제20권3호
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    • pp.159-180
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    • 2013
  • We establish a common fixed point theorem for mappings under ${\phi}$-contractive conditions on intuitionistic fuzzy metric spaces. As an application of our result we study the existence and uniqueness of the solution to a nonlinear Fredholm integral equation. We also give an example to validate our result.

INNOVATION FIXED POINT THEOREMS IN 0-σ-COMPLETE METRIC-LIKE SPACES WITH APPLICATION IN INTEGRAL EQUATIONS

  • Ranjbar, Ghorban Khalilzadeh
    • 한국수학교육학회지시리즈B:순수및응용수학
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    • 제29권3호
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    • pp.231-244
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    • 2022
  • In this paper, we introduce the notion of rational g-h-ϕ-weak contractions in tripled metric-like spaces and demonstrate common fixed point results for each mappings in 0-σ complete tripled metric-like spaces and some examples and application are given.

GENERALIZED INTEGRAL TYPE F-CONTRACTION IN PARTIAL METRIC SPACES AND COMMON FIXED POINT

  • G. S. Saluja;Ho Geun Hyun;Jong Kyu Kim
    • Nonlinear Functional Analysis and Applications
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    • 제28권1호
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    • pp.107-121
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    • 2023
  • In this work, we study generalized integral type F-contractions in partial metric spaces and establish some common fixed point theorems. Also, we give some consequences of the established result. Our results extend and generalize several results from the existing literature.

DOUBLE CONTROLLED CONE METRIC SPACES AND THE RELATED FIXED POINT THEOREMS

  • Tayebeh Lal Shateri
    • 한국수학교육학회지시리즈B:순수및응용수학
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    • 제30권1호
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    • pp.1-13
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    • 2023
  • In this paper, we introduce double controlled cone metric spaces via two control functions. An example of a double controlled cone metric space by two incomparable functions, which is not a controlled metric space, is given. We also provide some fixed point results involving Banach type and Kannan type contractions in the setting of double controlled cone metric spaces.

FIXED POINT THEOREMS IN b-METRIC AND EXTENDED b-METRIC SPACES

  • P. Swapna;T. Phaneendra;M. N. Rajashekhar
    • Nonlinear Functional Analysis and Applications
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    • 제28권4호
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    • pp.877-886
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    • 2023
  • The first result of this paper is to give a revised proof of Sanatammappa et al.'s recent result in a b-metric space, under appropriate choice of constants without using the continuity of the b-metric. The second is to prove a fixed point theorem under a contraction type condition in an extended b-metric space.

SOME RESULTS OF GENERALIZED HARDY-ROGER MAPPINGS IN RECTANGULAR b-METRIC SPACES

  • Chatuphol Khaofong;Phachara Saipara;Anantachai Padcharoen
    • Nonlinear Functional Analysis and Applications
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    • 제28권4호
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    • pp.1097-1113
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    • 2023
  • In this paper, we extend some fixed point theorems in rectangular b-metric spaces using subadditive altering distance and establishing the existence and uniqueness of fixed point for Hardy-Roger type mappings. Our result generalizes many known results in fixed point theory. Finally, we offer a example to illustrate our result.

FIXED POINT THEOREMS FOR A PAIR OF (α, η, ψ)-GERAGHTY CONTRACTION TYPE MAPS IN COMPLETE METRIC SPACES

  • P. Sudheer Kumar;G. V. V. Jagannadha Rao;R. Santhi Kumar;P. E. Satyanarayana
    • Nonlinear Functional Analysis and Applications
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    • 제29권1호
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    • pp.57-67
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    • 2024
  • In this paper, we prove the existence of common fixed point for a pair of α-η-ψ-Geraghty contraction type maps in complete metric spaces using new type of α-admissible. These results extend and generalize some of the previously known results.