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نویسندگان: 

SHAIKH A.A. | ROY I.

اطلاعات دوره: 
  • سال: 

    2011
  • دوره: 

    54
  • شماره: 

    -
  • صفحات: 

    35-45
تعامل: 
  • استنادات: 

    1
  • بازدید: 

    117
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

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بازدید 117

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اطلاعات دوره: 
  • سال: 

    2015
  • دوره: 

    46
تعامل: 
  • بازدید: 

    160
  • دانلود: 

    0
چکیده: 

IN THIS PAPER WE CONSIDER APPROXIMATE PROXIMITY PAIR FOR A SINGLE MAP. WE APPLY APPROXIMATE FIXED POINT FOR A MAP AND DISCUSS THE EXISTENCE OF APPROXIMATE PROXIMITY PAIR. APPROXIMATION THEORY, WHICH MAINLY CONSISTS OF THEORY OF NEAREST POINTS (BEST APPROXIMATION) AND THEORY OF FARTHEST POINTS (WORST APPROXIMATION), IS AN OLD AND RICH BRANCH OF ANALYSIS. THE THEORY IS AS OLD AS MATHEMATICS ITSELF. THE ANCIENT GREEKS APPROXIMATED THE AREA OF A CLOSED CURVE BY THE AREA OF A POLYGON. STARTING IN 1853, RUSSIAN MATHEMATICIAN P.L. CHEBYSHEV MADE SIGNIFICANT CONTRIBUTIONS IN THE THEORY OF BEST APPROXIMATION.

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نویسندگان: 

ESLAMIAN M. | ABKAR ALI

اطلاعات دوره: 
  • سال: 

    2013
  • دوره: 

    8
  • شماره: 

    2
  • صفحات: 

    75-84
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    369
  • دانلود: 

    0
چکیده: 

In this paper we introduce the concept of generalized weakly contractiveness for a pair of multivalued mappings in a metric space. We then prove the existence of a common fixed point for such mappings in a complete metric space. Our result generalizes the corresponding results for single valued mappings proved by Zhang and Song [14], as well as those proved by D. Doric [4].

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بازدید 369

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نویسندگان: 

VAEZZADEH S. | VAEZPOUR S.M.

اطلاعات دوره: 
  • سال: 

    2015
  • دوره: 

    12
  • شماره: 

    1
  • صفحات: 

    123-129
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    109
  • دانلود: 

    0
چکیده: 

In this paper, a concept of generalized weakly contraction map-pings in partially ordered fuzzy metric spaces is introduced and coincidence point theorems on partially ordered fuzzy metric spaces are proved. Also, as the corollary of these theorems, some common fixed point theorems on partially ordered fuzzy metric spaces are presented.

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نویسندگان: 

CHANDOK S.

اطلاعات دوره: 
  • سال: 

    2011
  • دوره: 

    29
  • شماره: 

    -
  • صفحات: 

    257-265
تعامل: 
  • استنادات: 

    1
  • بازدید: 

    99
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

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بازدید 99

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اطلاعات دوره: 
  • سال: 

    2018
  • دوره: 

    9
  • شماره: 

    2
  • صفحات: 

    169-178
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    147
  • دانلود: 

    0
چکیده: 

The purpose of this paper is to nd of the theoretical results of xed point theorems for a mixed monotone mapping in a metric space endowed with partially order by using the generalized Kanann type contractivity of assumption. Also, as an application, we prove the existence and uniqueness of solution for a rst{order ordinary di erential equation with periodic boundary conditions admitting only the existence of a mixed -solution.

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بازدید 147

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اطلاعات دوره: 
  • سال: 

    2023
  • دوره: 

    14
  • شماره: 

    8
  • صفحات: 

    129-135
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    37
  • دانلود: 

    0
چکیده: 

In this study, we establish some best proximity point results for generalized cyclic contraction mappings in partially ordered metric spaces. We also prove some best proximity point theorems by introducing the $T$-restriction property and generalized pointwise cyclic contraction mapping. Some illustrations are provided to support our results.

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بازدید 37

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اطلاعات دوره: 
  • سال: 

    2025
  • دوره: 

    16
  • شماره: 

    5
  • صفحات: 

    129-142
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    7
  • دانلود: 

    0
چکیده: 

In this present paper, inspired by the concept of weakly contractive mapping in metric spaces, we introduce the concept of weakly contractive mapping in generalized asymmetric metric spaces and we establish various fixed point theorems for such mappings in complete generalized metric spaces.

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نویسندگان: 

Aemro Yohannes Gebru | Demu Fayise Adare

اطلاعات دوره: 
  • سال: 

    2023
  • دوره: 

    14
  • شماره: 

    10
  • صفحات: 

    293-302
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    39
  • دانلود: 

    0
چکیده: 

The aim of this paper is to establish certain new classes of proximal contraction mappings and establish some bestproximity point theorems for such kinds of mapping, thereby we extend some fixed point theorems for generalizedweakly contractive mappings in metric spaces to the case of non-self mapping.

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نویسندگان: 

RAZANI A. | PARVANEH V.

اطلاعات دوره: 
  • سال: 

    2012
  • دوره: 

    2012
  • شماره: 

    -
  • صفحات: 

    0-0
تعامل: 
  • استنادات: 

    1
  • بازدید: 

    143
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

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بازدید 143

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