نتایج جستجو برای: k metric spaces

تعداد نتایج: 567092  

Journal: :mathematics interdisciplinary research 0
arsla hojat ansari department of mathematics, karaj branch, islamic azad university, karaj, iran, diana dolicanin-dekic faculty of technical science, 38000 kosovska mitrovica, feng gu institute of applied mathematics and department of mathematics, hangzhou normal university, hangzhou, zhejiang 310036, branislav popovic 4faculty of science, university of kragujevac, radoja domanovica 12, 34000 kragujevac, serbia, stojan n radenovic faculty of mechanical engineering, university of belgrade, kraljice marije 16, 11120 beograd, serbia

banach contraction principle has been generalized in different spaces by mathematicians over the years. mustafa and sims [18] proposed a new class of generalized metric spaces, which are called as g-metric spaces. in this type of spaces a non-negative real number is assigned to every triplet of elements. many mathematicians studied extensively various results on g-metric spaces by using the con...

Journal: :mathematics interdisciplinary research 0
zoran kadelburg university of belgrade faculty of mathematics stojan radenovic university of belgrade faculty of mechanical engineering muhammad sarwar department of mathematics, university of malakand

in this paper, we improve some recent coupled fixed point resultsfor single-valued operators in the framework of ordered $b$-metricspaces established by bota et al. [m-f. bota, a. petrusel, g.petrusel and b. samet, coupled fixed point theorems forsingle-valued operators in b-metric spaces, fixed point theoryappl. (2015) 2015:231]. also, we prove that perov-type fixed pointtheorem in ordered gen...

Journal: :iranian journal of fuzzy systems 2014
satish shukla mujahid abbas

in this paper,  the concept of fuzzy metric-like spaces is introduced which generalizes  the notion of fuzzy metric spaces given by george and veeramani cite{vee1}. some fixed point results for fuzzy contractive mappings on fuzzy metric-like spaces are derived. these results generalize several comparable results from the current literature. we also provide illustrative examples in support of ou...

2012
T. DOMINGUEZ J. LORENZO

We extend some known fixed point results for mappings satisfying Kannan type conditions to the context of K-metric spaces. Firstly, we prove a common fixed point result for noncommuting maps. A generalization of Kannan’s fixed point theorem is given in some class of spaces including K-metric spaces.

2009
Luigi Ambrosio Bernd Kirchheim

We develop a theory of currents in metric spaces which extends the classical theory of Federer{Fleming in euclidean spaces and in Riemannian manifolds. The main idea, suggested in 20, 21], is to replace the duality with diierential forms with the duality with (k + 1)-ples (f; 1; : : : ; k) of Lipschitz functions, where k is the dimension of the current. We show, by a metric proof which is new e...

Journal: :iranian journal of fuzzy systems 2013
antonio roldan juan martnez-moreno concepcion roldan

considering the increasing interest in fuzzy theory and possible applications,the concept of fuzzy metric space concept has been introduced by severalauthors from different perspectives. this paper interprets the theory in termsof metrics evaluated on fuzzy numbers and defines a strong hausdorff topology.we study interrelationships between this theory and other fuzzy theories suchas intuitionis...

2000
Luigi Ambrosio Bernd Kirchheim

We develop a theory of currents in metric spaces which extends the classical theory of Federer{Fleming in euclidean spaces and in Riemannian manifolds. The main idea, suggested in 20, 21], is to replace the duality with diierential forms with the duality with (k + 1)-ples (f; 1; : : : ; k) of Lipschitz functions, where k is the dimension of the current. We show, by a metric proof which is new e...

Journal: :international journal of nonlinear analysis and applications 2016
kamal fallahi aris aghanians

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 graph.

Journal: :iranian journal of fuzzy systems 2015
s. m. vaezpour s. vaezzadeh

in this paper, a concept of generalized weakly contraction mappings 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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