Results 31 to 40 of about 591,069 (266)

Generalized fixed point theorems on metric spaces [PDF]

open access: yesMathematica Moravica, 2022
In this paper, we establish some fixed point theorems for single valued and multi-valued mappings on a complete metric space. Suzuki's and some other fixed point theorems are generalized by taking a more general contractive condition for single valued ...
Chandra Naveen   +2 more
doaj   +1 more source

Fixed point theorems for generalized weakly contractive mappings in metric spaces with applications

open access: yesFixed Point Theory and Applications, 2018
In this paper, motivated and inspired by Samet et al., we introduce the notion of generalized weakly contractive mappings in metric spaces and prove the existence and uniqueness of fixed point for such mappings, and we obtain a coupled fixed point ...
S. Cho
semanticscholar   +1 more source

Fixed point theorems for Kannan type mappings

open access: yes, 2017
In this note, we prove some fixed point theorems for Kannan type mappings. We will use the additional conditions as compactness or asymptotic regularity or involutions.
J. Górnicki
semanticscholar   +1 more source

Fixed Point Theorems via α-ϱ-Fuzzy Contraction

open access: yesAxioms, 2019
Some well known results from the existing literature are extended and generalized via new contractive type mappings in fuzzy metric spaces. A non trivial supporting example is also provided to demonstrate the validity of the obtained results.
Badshah-e- Rome   +2 more
doaj   +1 more source

Fixed point theorems for various types of F-contractions in complete b-metric spaces

open access: yes, 2018
We generalize various types of F -contractions defined by Wardowski, Vetro and others to b-metric spaces and prove fixed point theorems for them. The examples given show that these generalizations extend the existing results in a significant way.
A. Lukács, S. Kajántó
semanticscholar   +1 more source

Fixed point theorems

open access: yesCommunications, Faculty Of Science, University of Ankara Series A1Mathematics and Statistics, 1984
The authors' main result is the following: Let (X,d) be a complete metric space and \(f: X\to X\) a self-mapping. If for x,y\(\in X\) and \(p>0\) the inequality \[ d(T^{2p}x,T^{2p}y)\leq a_ 1d(T^ px,T^{2p}x)+a_ 2d(T^ py,T^{2p}y)+a_ 3d(T^ px,T^ py) \] with \(a_ 1,a_ 2,a_ 3\geq 0\) and \(a_ 1+a_ 2+a_ ...
Khan, M. S., Khan, M. D.
openaire   +6 more sources

Common fixed point theorems and applications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
The purpose of this paper is to discuss the existence of common fixed points for mappings in general quasi-metric spaces. As applications, some common fixed point theorems for mappings in probabilistic quasi-metric spaces are given. The results presented
Hemant Kumar Pathak   +3 more
doaj   +1 more source

Bipolar metric spaces and some fixed point theorems

open access: yes, 2016
In this paper we introduce the concept of bipolar metric space as a type of partial distance. We explore the link between metric spaces and bipolar metric spaces, especially in the context of completeness, and prove some extensions of known fixed point ...
A. Mutlu, U. Gürdal
semanticscholar   +1 more source

Fixed-point-like theorems on subspaces

open access: yesFixed Point Theory and Applications, 2004
We prove a fixed-point-like theorem for multivalued mappings defined on the finite Cartesian product of Grassmannian manifolds and convex sets. Our result generalizes two different kinds of theorems: the fixed-point-like theorem by Hirsch et al.
Cornet Bernard, Bich Philippe
doaj   +2 more sources

Understanding Fixed Point Theorems [PDF]

open access: yes, 2003
Fixed point theorems are the standard tool used to prove the existence of equilibria in mathematical economics. This paper shows how to prove a slight generalization of Brouwer's and Kakutani's fixed point theorems using the familiar techniques of ...
Arnold, Lutz G.
core  

Home - About - Disclaimer - Privacy