• 제목/요약/키워드: Fixed point theorems

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Fixed Point Theorems for Expansion Mappings on Probabilistic Metric Spaces

  • Pant, B.O.;Dimri, R.C.;Singh, S.L.
    • 호남수학학술지
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    • 제9권1호
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    • pp.77-81
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    • 1987
  • In this paper we introduce the notion of expansion mapping on a probabilistic metric space and prove common fixed point theorems for a pair of such mappings. These results being new of their kind. are interesting generafizations of some of the known results.

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A NOTE ON GENERALIZED COMMON FIXED POINT THEOREMS FOR FUZZY MAPPINGS

  • Lee, Byung-Soo;Lee, Gue-Myung
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 1995년도 추계학술대회 학술발표 논문집
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    • pp.352-355
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    • 1995
  • In this note, we give generalized common fixed point theorems for sequences of fuzzy mappings on Menger probabilistic metric spaces.

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COMMON FIXED POINT THEOREMS FOR CONTRACTIVE TYPE MAPPINGS AND THEIR APPLICATIONS IN DYNAMIC PROGRAMMING

  • Liu, Zeqing;Wang, Lili;Kim, Hyeong-Kug;Kang, Shin-Min
    • 대한수학회보
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    • 제45권3호
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    • pp.573-585
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    • 2008
  • A few sufficient conditions for the existence and uniqueness of fixed point and common fixed point for certain contractive type mappings in complete metric spaces are provided. Several existence and uniqueness results of solution and common solution for some functional equations and system of functional equations in dynamic programming are discussed by using the fixed point and common fixed point theorems presented in this paper.

COUPLED COMMON FIXED POINT THEOREMS FOR A CONTRACTIVE CONDITION OF RATIONAL TYPE IN ORDERED METRIC SPACES

  • Chandok, Sumit
    • Journal of applied mathematics & informatics
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    • 제31권5_6호
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    • pp.643-649
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    • 2013
  • The purpose of this paper is to establish some coupled coincidence point theorems for a pair of mappings having a strict mixed g-monotone property satisfying a contractive condition of rational type in the framework of partially ordered metric spaces. Also, we present a result on the existence and uniqueness of coupled common fixed points. The results presented in the paper generalize and extend several well-known results in the literature.

FIXED POINT THEOREMS IN MENGER SPACES USING AN IMPLICIT RELATION

  • Chauhan, Sunny;Khan, M. Alamgir;Pant, B.D.
    • 호남수학학술지
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    • 제35권4호
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    • pp.551-564
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    • 2013
  • In 2008, Al-Thaga and Shahzad [Generalized I-nonexpansive selfmaps and invariant approximations, Acta Math. Sinica, 24(5) (2008), 867-876] introduced the notion of occasionally weakly compatible mappings in metric spaces. In this paper, we prove some common fixed point theorems for families of occasionally weakly compatible mappings in Menger spaces using an implicit relation. We also give an illustrative example to support our main result.

A GENERAL COMMON FIXED POINT THEOREM FOR TWO PAIRS OF MAPPINGS IN METRIC SPACES

  • Popa, Valeriu;Patriciu, Alina-Mihaela
    • 호남수학학술지
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    • 제40권1호
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    • pp.13-25
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    • 2018
  • In this paper a general fixed point theorem for two pairs of mappings involving altering distance is proved. This theorem generalizes Theorem 9 [5], Theorems 1, 2, 3 [6], Theorems 2.3, 2.4 [7] and other results from [11]. As applications, some results for mappings satisfying contractive conditions of integral type and ${\phi}$-contractive conditions are obtained.

COMMON FIXED POINT THEOREMS WITH APPLICATIONS TO THE SOLUTIONS OF FUNCTIONAL EQUATIONS ARISING IN DYNAMIC PROGRAMMING

  • Liu, Zeqing;Liu, Min;Kim, Hyeong-Kug;Kang, Shin-Min
    • 대한수학회논문집
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    • 제24권1호
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    • pp.67-83
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    • 2009
  • Several common fixed point theorems for a few contractive type mappings in complete metric spaces are established. As applications, the existence and uniqueness of common solutions for certain systems of functional equations arising in dynamic programming are discussed.

FIXED POINT THEOREMS ON GENERALIZED CONE METRIC SPACES OVER BANACH ALGEBRAS AND APPLICATIONS

  • Leng, Qianqian;Yin, Jiandong
    • 대한수학회지
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    • 제55권6호
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    • pp.1513-1528
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    • 2018
  • The aim of this paper is to introduce the concept of generalized cone metric spaces over Banach algebras as a generalization of generalized metric spaces and present several fixed point results of a class of contractive mappings in generalized cone metric spaces over Banach algebras. Moreover, in order to support our main results, one example is given at the end of this paper.

SOME FIXED POINT THEOREMS IN CONNECTION WITH TWO WEAKLY COMPATIBLE MAPPINGS IN BICOMPLEX VALUED METRIC SPACES

  • Choi, Junesang;Datta, Sanjib Kumar;Biswas, Tanmay;Islam, Md Nazimul
    • 호남수학학술지
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    • 제39권1호
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    • pp.115-126
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    • 2017
  • In this paper, we aim to prove certain common fixed point theorems for a pair of weakly compatible mappings satisfying (CLRg) (or (E.A)) property in the bicomplex valued metric spaces. We also provide some examples which support the main results here.