نتایج جستجو برای: s fixed point theorem

تعداد نتایج: 1443334  

Journal: :iranian journal of fuzzy systems 2015
m. abbas b. ali

generalized geraghty type fuzzy mappings oncomplete metric spaces are introduced and a fixed point theorem thatgeneralizes some recent comparable results for fuzzy mappings incontemporary literature is obtained. example is provided to show thevalidity of obtained results over comparable classical results for fuzzymappings in fixed point theory. as an application, existence of coincidencefuzzy p...

Journal: :international journal of nonlinear analysis and applications 0
reza arab department of mathematics, sari branch, islamic azad university, sari, iran reza allahyari department of mathematics, mashhad branch, islamic azad university, mashhad, iran. ali shole haghighi department of mathematics, sari branch, islamic azad university, sari, iran.

in this paper we apply the technique of measures of noncompactness to the theory of infinite system of integral equations in the fr´echet spaces. our aim is to provide a few generalization of tychonoff fixed point theorem and prove the existence of solutions for infinite systems of nonlinear integral equations with help of the technique of measures of noncompactness and a generalization of tych...

Journal: :Fundamenta Mathematicae 1977

Journal: :Bulletin of the Polish Academy of Sciences Mathematics 2006

Journal: :Proceedings of the American Mathematical Society 1970

Journal: :Hiroshima Mathematical Journal 1957

Journal: :bulletin of the iranian mathematical society 2013
f. j. torres

this paper presents conditions for the existence and multiplicity of positive solutions for a boundary value problem of a nonlinear fractional differential equation. we show that it has at least one or two positive solutions. the main tool is krasnosel'skii fixed point theorem on cone and fixed point index theory.

Journal: :international journal of mathematical modelling and computations 0
esmaeil feizi bu-ali sina university iran, islamic republic of

binayak et al in [1] proved a fixed point of generalized kannan type-mappings in generalized menger spaces. in this paper we extend gen- eralized kannan-type mappings in generalized fuzzy metric spaces. then we prove a fixed point theorem of this kind of mapping in generalized fuzzy metric spaces. finally we present an example of our main result.

Journal: :Results in Fixed Point Theory and Applications 2020

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