نتایج جستجو برای: complex valued metric space

تعداد نتایج: 1323061  

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...

Journal: :bulletin of the iranian mathematical society 0
m. ‎demma‎ universita degli studi di palermo‎, ‎dipartimento di matematica e informatica‎, ‎via archirafi‎, ‎34‎, ‎90123 palermo‎, ‎italy. r. saadati department of mathematics‎, ‎iran university of science and technology‎, ‎tehran‎, ‎iran. p. vetro universita degli studi di palermo‎, ‎dipartimento di matematica e nformatica‎, ‎via archirafi‎, ‎34‎, ‎90123 palermo‎, ‎italy.

‎recently‎, ‎hussain et al.‎, ‎discussed the concept of $wt$-distance on a‎ ‎metric type space‎. ‎in this paper‎, ‎we prove some fixed‎ ‎point theorems for classes of contractive type multi-valued operators‎, ‎by using $wt$-distances in the setting of a complete metric type space‎. ‎these results generalize a result of feng and liu on multi-valued operators.

2004
M. O. Olatinwo

In this paper, we establish a fixed point theorem for multi-valued operators in a complete b−metric space using the concept of Berinde and Berinde [9] on multi-valued weak contractions for the Picard iteration in a metric space. Our main result generalizes, extends and improves some of the recent results of Berinde and Berinde [9] as well as those of Daffer and Kaneko [17] and also unifies seve...

2014
XUN GE

In this paper, we prove that if f is a contractive closed-valued correspondence on a cone metric space (X, d) and there is a contractive orbit {xn} for f at x0 ∈ X such that both {xni} and {xni+1} converge for some subsequence {xni} of {xn}, then f has a fixed point, which generalizes a fixed point theorem for contractive closed-valued correspondences from metric spaces to cone metric spaces.

Journal: :Computers & Mathematics with Applications 2012

Journal: :Moroccan Journal of Pure and Applied Analysis 2019

Journal: :Int. J. Math. Mathematical Sciences 2012
Ahmed Saleh Al-Rawashdeh Wasfi A. Shatanawi Muna Mohammad Khandaqji

In 2007, Haung and Zhang introduced the notion of cone metric spaces. In this paper, we define an ordered space E, and we discuss some properties and examples. Also, normed ordered space is introduced. We recall properties of R, and we discuss their extension to E. We introduce the notion of E-metric spaces and characterize cone metric space. Afterwards, we get generalizations of notions of con...

1994
Abbas Edalat

We present a domain-theoretic framework for measure theory and integration of bounded real-valued functions with respect to bounded Borel measures on compact metric spaces. The set of normalised Borel measures of the metric space can be embedded into the maximal elements of the normalised probabilistic power domain of its upper space. Any bounded Borel measure on the compact metric space can th...

Journal: :International Journal of Engineering Mathematics 2016

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