نتایج جستجو برای: s fixed pointtheorem

تعداد نتایج: 891882  

In this paper, we discuss the existence and uniqueness of fixed points for $G$-asymptotic contractions in metric spaces endowed with a graph. The result given here is a new version of Kirk's fixed point theorem for asymptotic contractions in metric spaces endowed with a graph. The given result here is a generalization of fixed point theorem for asymptotic contraction from metric s paces to metr...

Journal: :international journal of nonlinear analysis and applications 0
kamal fallahi department of mathematics, payame noor university, p.o. box 19395-3697, tehran, iran aris aghanians department of mathematics, payame noor university, p.o. box 19395-3697, tehran, iran

in this work‎, ‎we formulate chatterjea contractions using graphs in metric spaces endowed with a graph ‎‎and‏ ‎‎‎‎investigate ‎the ‎existence‎ ‎of ‎fixed ‎points ‎for such mappings ‎under two different hypotheses‎. we also discuss the uniqueness of the fixed point. the given result is a generalization of chatterjea's fixed point theorem from metric spaces to metric spaces endowed with a g...

Journal: :گیاه پزشکی 0
عبدالامیر محیسنی عضو هیات علمی ایستگاه تحقیقات کشاورزی بروجرد ابراهیم سلیمان نژادیان استاد گروه گیاهپزشکی دانشگاه شهیدچمران اهواز محمدسعید مصدق استاد گروه گیاهپزشکی دانشگاه شهیدچمران اهواز غلامرضا رجبی استاد پژوهش مؤسسه تحقیقات گیاهپزشکی کشور

sunn pest, eurygaster integriceps put., is the most important pest of wheat and barley in most producing regions of iran, including lorestan province. spatial distribution and fixed precision sequential sampling plans of sunn pest by the use of two quadrate sizes 0.25 and 0.5 m2 were investigated in rainfed wheat fields in borujerd during 2004 and 2005. based on r square of regression, taylor&a...

Journal: :نظریه تقریب و کاربرد های آن 0
جواد مجردی افرا آر آی

in this paper, we prove some common fi xed point results for two self mappingsf and g on s-metric space such that f is a g.w.c.m with respect to g.

 Background and purpose: One of the main challenges in orthodontic treatment is relapse after treatment and return of the teeth to its original position. Therefore, retainers are an essential part of orthodontic treatment. Fixed and removable retainers are commonly used in orthodontic retention. They prevent relapse and require patientchr('39')s cooperation in using them. This review study aime...

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 prove the existence of the solution for boundary value prob-lem(bvp) of fractional di erential equations of order q 2 (2; 3]. the kras-noselskii's xed point theorem is applied to establish the results. in addition,we give an detailed example to demonstrate the main result.

M. Demma, P. Vetro, R. Saadati,

In a recent paper, Khojasteh emph{et al.} [F. Khojasteh, S. Shukla, S. Radenovi'c, A new approach to the study of fixed point theorems via simulation functions, Filomat, 29 (2015), 1189-–1194] presented a new class of simulation functions, say $mathcal{Z}$-contractions, with unifying power over known contractive conditions in the literature. Following this line of research, we extend and ...

Journal: :Nonlinear Analysis: Modelling and Control 2021

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