• 제목/요약/키워드: Fixed point theorems

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CONVERGENCE THEOREMS FOR A HYBRID PAIR OF SINGLE-VALUED AND MULTI-VALUED NONEXPANSIVE MAPPING IN CAT(0) SPACES

  • Naknimit, Akkasriworn;Anantachai, Padcharoen;Ho Geun, Hyun
    • Nonlinear Functional Analysis and Applications
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    • 제27권4호
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    • pp.731-742
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    • 2022
  • In this paper, we present a new mixed type iterative process for approximating the common fixed points of single-valued nonexpansive mapping and multi-valued nonexpansive mapping in a CAT(0) space. We demonstrate strong and weak convergence theorems for the new iterative process in CAT(0) spaces, as well as numerical results to support our theorem.

SOME NEW COMMON FIXED POINTS OF GENERALIZED RATIONAL CONTRACTIVE MAPPINGS IN DISLOCATED METRIC SPACES WITH APPLICATION

  • Khan, Sami Ullah;Arshad, Muhammad;Rasham, Tahair;Shoaib, Abdullah
    • 호남수학학술지
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    • 제39권2호
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    • pp.161-174
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    • 2017
  • The objective of this manuscript is to continue the study of fixed point theory in dislocated metric spaces, introduced by Hitzler et al. [12]. Concretely, we apply the concept of dislocated metric spaces and obtain theorems asserting the existence of common fixed points for a pair of mappings satisfying new generalized rational contractions in such spaces.

COUPLED FIXED POINTS FOR MIXED g-MONOTONE UNDER RATIONAL CONTRACTIVE EXPRESSIONS IN PARTIALLY ORDERED METRIC SPACES

  • Nashine, Hemant Kumar;Gupta, Anita
    • East Asian mathematical journal
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    • 제32권5호
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    • pp.745-765
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    • 2016
  • We propose coupled fixed point theorems for maps satisfying contractive conditions involving a rational expression in the setting of partially ordered metric spaces. We also present a result on the existence and uniqueness of coupled fixed points. In particular, it is shown that the results existing in the literature are extend, generalized, unify and improved by using mixed monotone property. Given to support the useability of our results, and to distinguish them from the known ones.

FIXED POINT THEOREMS IN d-COMPLETE TOPOLOGICAL SPACES

  • Cho, Seong-Hoon;Lee, Jae-Hyun
    • Journal of applied mathematics & informatics
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    • 제28권3_4호
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    • pp.1009-1015
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    • 2010
  • We prove the existence of common fixed points for three self mappings satisfying contractive conditions in d-complete topological spaces. Our results are generalizations of result of Troy L. Hicks and B. E. Roades[Troy L. Hicks and B. E. Roades, Fixed points for pairs of mappings in d-complete topological spaces, Int. J. Math. and Math. Sci., 16(2)(1993), 259-266].

FIXED POINT OF α - ψ - CONTRACTIVE MULTIFUNCTION IN FUZZY METRIC SPACES

  • KUMAR, MOHIT;ARORA, RIITU
    • Journal of applied mathematics & informatics
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    • 제35권3_4호
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    • pp.323-330
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    • 2017
  • Recently Samet, Vetro and Vetro introduced the notion of ${\alpha}$-${\Psi}$-contractive type mappings and initiated some fixed point theorems in complete metric spaces. The notion of ${\alpha}_*$ - ${\Psi}$-contractive multifunctions and initiated some fixed point results by Hasanzade Asl et. al. [8]. In this paper, we introduced the notion of ${\alpha}_*$ - ${\Psi}$-contractive multifunctions in a fuzzy metric space and gave fixed point results for these multifunctions in complete fuzzy metric spaces. We also obtain a fixed point results for self-maps in complete fuzzy metric spaces satisfying contractive condition.

Related Fixed Point Theorem for Six Mappings on Three Fuzzy Metric Spaces

  • Sharma, Sushil;Tilwankar, Prashant
    • Kyungpook Mathematical Journal
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    • 제51권4호
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    • pp.365-374
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    • 2011
  • Related fixed point theorems on two or three metric spaces have been prove in different ways. However, so for the related fixed point theorem on fuzzy metric space have not been proved. Sharma, Deshpande and Thakur were the first who have establishe related fixed point theorem for four mappings on two complete fuzzy metric spaces. Their work was maiden in this line. In this paper we obtain a related fixed point theorem for six mappings on three complete fuzzy metric spaces. Of course this is a new result on this line.