نتایج جستجو برای: pair fi xed point

تعداد نتایج: 660923  

Journal: :نظریه تقریب و کاربرد های آن 0
ُs. a. m mohsenalhoseini valie-asr university h mazaheri islamic azad university of yazd

the purpose of this paper is to obtain necessary and suffcient conditionsfor existence approximate fi xed point on geraghty-contraction. in this paper,de nitions of approximate -pair fi xed point for two maps t α , sα and theirdiameters are given in a metric space.

Journal: :bulletin of the iranian mathematical society 0
k. p. chi vinh university e. karapinar atilim university t. d. thanh vinh university

in this paper, we prove a fi xed point theorem for a pair of generalized weakly contractive mappings in complete partial metric spaces. the theorems presented are generalizations of very recent fixed point theorems due to abdeljawad, karapinar and tas. to emphasize the very general nature of these results, we illustrate an example.

Journal: :نظریه تقریب و کاربرد های آن 0
sh rezaei department of mathematic, islamic azad university, aligudarz branch, aligudarz, lorestan, iran.

in this paper we formulate and prove some xed and common xed pointtheorems for self-mappings de ned on complete lower transversal functionalprobabilistic spaces.

We de ne approximate xed point in fuzzy norm spaces and prove the existence theorems, we also consider approximate pair constructive map- ping and show its relation with approximate fuzzy xed point.

Journal: :نظریه تقریب و کاربرد های آن 0
سید جلال حسینی غنچه دانشگاه آزاد اسلامی واحد تاکستان ه. صلاحی فرد دانشگاه صنعتی امیر کبیر. دانشکده ریاضی و کامپیوتر

in this paper, we prove the existence of fi xed point for j-type multi-valuedmap t in cat(0) spaces and also we prove the strong convergence theoremsfor ishikawa iteration scheme without using the xed point of involving map.

Journal: :iranian journal of fuzzy systems 2013
s. a. m. mohseniailhosseini h. mazaheri m. a. dehghan

we de ne approximate xed point in fuzzy norm spaces and prove the existence theorems, we also consider approximate pair constructive map- ping and show its relation with approximate fuzzy xed point.

Journal: :نظریه تقریب و کاربرد های آن 0
لیلا قلی زاده دانشگاه آزاد واحد علوم و تحقیقات تهران

we consider the concept of ω-distance on a complete partially ordered g-metric space and prove some common fi xed point theorems.

Journal: :نظریه تقریب و کاربرد های آن 0
e. firouz department of mathematics, islamic azad university, abhar branch, abhar, iran. s. j. hosseini ghoncheh department of mathematics, takestan branch, islamic azad university, takestan, iran.

boujari [5] proved a fi xed point theorem with an old version of the integraltype contraction , his proof is incorrect. in this paper, a new generalizationof integral type contraction is introduced. moreover, a fixed point theorem isobtained.

Journal: :Kathedra of Byzantine and Modern Greek Studies 2020

Journal: : 2022

"This paper deals with some existence results for a class of implicit fractional q-difference equations. The are based on the fi xed point theory in Banach spaces and concept measure noncompactness. An illustrative example is given last section."

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