نتایج جستجو برای: common fxed point

تعداد نتایج: 1164047  

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: :mathematics interdisciplinary research 0
tatjana dosenovic faculty of technology, university of novi sad, serbia abdolsattar gholidahneh department of mathematics, qaemshahr branch, islamic azad univer- sity, qaemshahr, iran shaban sedghi department of mathematics, qaemshahr branch, islamic azad university, qaemshahr, iran stojan radenovic faculty of mechanical engineering, university of belgrade, kraljice marije 16, 11120 beograd, serbia, department of mathematics, university of novi pazar, novi pazar, serbia

in the present paper, we introduces the notion of integral type contractive mapping with respect to ordered s-metric space and prove some coupled common fixed point results of integral type contractive mapping in ordered s-metric space. moreover, we give an example to support our main result.

Journal: :international journal of industrial mathematics 0
h. rahimi department of mathematics, islamic azad university, central tehran branch, tehran, iran g. soleimani rad department of mathematics, islamic azad university, central tehran branch, tehran, iran

recently, cho et al. [y. j. cho, r. saadati, s. h. wang, common xed point theorems on generalized distance in ordered cone metric spaces, comput. math. appl. 61 (2011) 1254-1260] de ned the concept of the c-distance in a cone metric space and proved some xed point theorems on c-distance. in this paper, we prove some new xed point and common xed point theorems by using the distance in ordere...

Journal: :bulletin of the iranian mathematical society 2012
wultipol sintunavarat poom kumam

recently, choudhury and metiya [fixed points of weak contractions in cone metric spaces, nonlinear analysis 72 (2010) 1589-1593] proved some fixed point theorems for weak contractions in cone metric spaces. weak contractions are generalizations of the banach's contraction mapping, which have been studied by several authors. in this paper, we introduce the notion of $f$-weak contractions and als...

2005
Jan Willem THORBECKE

Dit proefschrift is goedgekeurd door de promotor: 'Alles komt voort uit de chaos', wordt er in de Griekse Anthologie gezegd. En in-derdaad, alles komt voort uit de chaos. Buiten de wiskunde, die enkel met dode getallen en loze formules te maken heeft en derhalve volmaakt logisch kan zijn, is de wetenschap niet meer dan een kinderspel in de schemering, het willen vangen van vogelschaduwen en het...

Journal: :Bulletin of the Australian Mathematical Society 1977

Journal: :Journal of JSEE 2020

Journal: :bulletin of the iranian mathematical society 2011
t. suzuki r. saadati d. o’regan

Journal: :international journal of mathematical modelling and computations 0
hamid mottaghi golshan department of mathematics, lorestan university, p. o. box 465, khoramabad, iran

in this paper we investigate common xed point theorems for contraction mapping in fuzzy metric space introduced by gregori and sapena [v. gregori, a. sapena, on xed-point the- orems in fuzzy metric spaces, fuzzy sets and systems, 125 (2002), 245-252].

Journal: :international journal of nonlinear analysis and applications 2015
masoud hadian dehkordi masoud ghods

in this paper, we introduce the (g-$psi$) contraction in a metric space by using a graph.let $f,t$ be two multivalued mappings on $x.$ among other things, we obtain a common fixedpoint of the mappings $f,t$ in the metric space $x$ endowed with a graph $g.$

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