Results 31 to 40 of about 683,768 (364)

Relation-Theoretic Contraction Principle In Metric Spaces Using Multiplicative Contraction

open access: yesRatio Mathematica, 2023
Alam and Imdad have presented a novel application of the Banach contraction principle on a complete metric spaces with a binary relation. We have extended the concept of binary relation with the multiplicative contraction in a complete metric spaces.
Radha Yadav, Balbir Singh
doaj   +1 more source

Fixed points of multivalued nonlinear F-contractions on complete metric spaces

open access: yes, 2016
We introduce a new concept for multivalued maps, also called multivalued nonlinear F-contraction, and give a fixed point result. Our result is a proper generalization of some recent fixed point theorems including the famous theorem of Klim and Wardowski [
I. Altun, Gülhan Minak, M. Olgun
semanticscholar   +1 more source

Bourbaki completeness in quasi metric spaces [PDF]

open access: yesJournal of Nonlinear Functional Analysis, 2019
The main purpose of this paper is to define a new type of boundedness in a quasi metric space. We introduce some new notions of completeness by clustering sequences belonging to the classes larger than the classes of Cauchy sequences in some sense. We also obtain some interesting results related to the compactness.
İlkhan, Merve, Kara, Emrah Evren
openaire   +2 more sources

Fixed and common fixed points for $(psi,varphi)$-weakly contractive mappings in $b$-metric spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2017
In this paper, we give a fixed point theorem for $(psi,varphi)$-weakly contractive mappings in complete $b$-metric spaces. We also give a common fixed point theorem for such mappings in complete $b$-metric spaces via altering functions. The given results
Hamid Faraji, Kourosh Nourouzi
doaj  

Some Extensions of Fixed Point Results over Quasi-JS-Spaces

open access: yesJournal of Function Spaces, 2016
We introduce the notion of quasi-JS-metric space. After defining the basic topological properties of quasi-JS-metric space, we investigate fixed point of certain mapping in the frame of complete quasi-JS-metric space.
Maha Noorwali   +2 more
doaj   +1 more source

A new approach on generalized quasimetric spaces induced by partial metric spaces

open access: yesJournal of Inequalities and Applications, 2022
In this paper, we introduce the concept of generalized quasimetric spaces by a new approach, and present some examples in the partial metric spaces. Furthermore, we obtain some results on (strong) complete partial metric spaces.
Yaoqiang Wu
doaj   +1 more source

C -class functions and fixed point theorems for generalized α−η−ψ−φ−F− contraction type mappings in α−η− complete metric spaces

open access: yes, 2016
In this paper, we introduce the concept of generalized α-η-ψ-φ-F -contraction type mappings where ψ is the altering distance function and φ is the ultra altering distance function.
A. H. Ansari, A. Kaewcharoen
semanticscholar   +1 more source

Meir–Keeler Fixed-Point Theorems in Tripled Fuzzy Metric Spaces

open access: yesMathematics, 2023
In this paper, we first propose the concept of a family of quasi-G-metric spaces corresponding to the tripled fuzzy metric spaces (or G-fuzzy metric spaces). Using their properties, we give the characterization of tripled fuzzy metrics.
Hui Yang
doaj   +1 more source

Fixed point theorems for generalized α−η−ψ− Geraghty contraction type mappings in α−η− complete metric spaces

open access: yes, 2016
In this paper, we introduce the concept of generalized α-η-ψ-Geraghty contraction type mappings and prove the unique fixed point theorems for such mappings in α-η-complete metric spaces without assuming the subadditivity of ψ. We also give an example for
Preeyaluk Chuadchawna   +2 more
semanticscholar   +1 more source

New fixed point theorems for generalized F-contractions in complete metric spaces

open access: yesFixed Point Theory and Applications, 2015
In this paper, owing to the concept of F-contraction, we define two new classes of functions M(S,T)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs}
Jamshaid Ahmad, A. Al-Rawashdeh, A. Azam
semanticscholar   +1 more source

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