• Title/Summary/Keyword: metric spaces

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COMMON FIXED POINTS FOR COMPATIBLE MAPPINGS OF TYPE(A) IN 2-METRIC SPACES

  • WANG, WEN-ZUO
    • Honam Mathematical Journal
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    • v.22 no.1
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    • pp.91-97
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    • 2000
  • In this paper we obtain a criterion for the existence of a common fixed point of a pair of mappings in 2-metric spaces. Our result generalizes a number of fixed point theorems given by Imdad, Khan and Khan [1], Kahn and Fisher [2], Kubiak [3], Rhoades [5], and Singh, Tiwari and Gupta [6].

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COMMON FIXED POINTS WITHOUT CONTINUITY IN FUZZY METRIC SPACES

  • SHARMA SUSHIL;DESHPANDE BHAVANA
    • The Pure and Applied Mathematics
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    • v.12 no.4 s.30
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    • pp.289-306
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    • 2005
  • The aim of this paper is to prove some common fixed point theorems for six discontinuous mappings in non complete fussy metric spaces with condition of weak compatibility.

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Notes on common fixed point theorems in metric spaces

  • Kim, Kee-Hwan;Leem, Koung-Hee
    • Communications of the Korean Mathematical Society
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    • v.11 no.1
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    • pp.109-115
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    • 1996
  • A number of authors have generalized contraction mapping theorems in metric spaces. In this paper, we give some common fixed point theorems related with the diameter of the orbit on metric spaces. We generalize the results of M. Ohta and G. Nikaido [6], also Taskovic [8].

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g-METRIC SPACES AND ASYMPTOTICALLY LACUNARY STATISTICAL EQUIVALENT SEQUENCES

  • Saime Kolanci;Mehmet Gurdal;Omer Kisi
    • Honam Mathematical Journal
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    • v.45 no.3
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    • pp.503-512
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    • 2023
  • In the present article, we introduce the concepts of strongly asymptotically lacunary equivalence, asymptotically statistical equivalence, and asymptotically lacunary statistical equivalence for sequences in g-metric spaces. We investigate some properties and relationships among these new concepts.

EXISTENCE OF SOLUTION OF DIFFERENTIAL EQUATION VIA FIXED POINT IN COMPLEX VALUED b-METRIC SPACES

  • Mebawondu, A.A.;Abass, H.A.;Aibinu, M.O.;Narain, O.K.
    • Nonlinear Functional Analysis and Applications
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    • v.26 no.2
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    • pp.303-322
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    • 2021
  • The concepts of new classes of mappings are introduced in the spaces which are more general space than the usual metric spaces. The existence and uniqueness of common fixed points and fixed point results are established in the setting of complete complex valued b-metric spaces. An illustration is given by establishing the existence of solution of periodic differential equations in the framework of a complete complex valued b-metric spaces.

Paracontact Metric (k, 𝜇)-spaces Satisfying Certain Curvature Conditions

  • Mandal, Krishanu;De, Uday Chand
    • Kyungpook Mathematical Journal
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    • v.59 no.1
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    • pp.163-174
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    • 2019
  • The object of this paper is to classify paracontact metric ($k,{\mu}$)-spaces satisfying certain curvature conditions. We show that a paracontact metric ($k,{\mu}$)-space is Ricci semisymmetric if and only if the metric is Einstein, provided k < -1. Also we prove that a paracontact metric ($k,{\mu}$)-space is ${\phi}$-Ricci symmetric if and only if the metric is Einstein, provided $k{\neq}0$, -1. Moreover, we show that in a paracontact metric ($k,{\mu}$)-space with k < -1, a second order symmetric parallel tensor is a constant multiple of the associated metric tensor. Several consequences of these results are discussed.