Results 41 to 50 of about 1,311,479 (362)

Relation-theoretic fixed point theorems under a new implicit function with applications to ordinary differential equations

open access: yesAIMS Mathematics, 2020
In this paper, we introduce a new implicit function without any continuity requirement and utilize the same to prove unified relation-theoretic fixed point results. We adopt some examples to exhibit the utility of our implicit function.
Waleed M. Alfaqih   +3 more
doaj   +1 more source

Coupled fixed point sets with data-dependence and stability [PDF]

open access: yesSurveys in Mathematics and its Applications, 2022
In this paper we establish a coupled fixed point theorem of a coupled multivalued mapping defined on a complete metric space. In our result we use a new contractive inequality. There are rational terms in the expression of the inequality. The contractive
Binayak S. Choudhury   +2 more
doaj  

Tukey morphisms between finite relations [PDF]

open access: yesarXiv, 2023
We investigate Tukey morphisms between binary relations, establishing several fundamental lemmas. We then specialize to finite binary relations, using computational methods to classify all binary relations with at most $6$ points in the domain and codomain up to bimorphism.
arxiv  

Groups and Algebras of Binary Relations [PDF]

open access: yesThe Bulletin of Symbolic Logic, 2002
AbstractIn 1941, Tarski published an abstract, finitely axiomatized version of the theory of binary relations, called the theory of relation algebras. He asked whether every model of his abstract theory could be represented as a concrete algebra of binary relations.
Givant, Steven, Andreka, Hajnal
openaire   +2 more sources

Perov Fixed-Point Results on F-Contraction Mappings Equipped with Binary Relation

open access: yesMathematics, 2023
The purpose of this article is to discuss some new aspects of the vector-valued metric space. The idea of an arbitrary binary relation along with the well-known F contraction is used to demonstrate the existence of fixed points in the context of a ...
Fahim Ud Din   +3 more
doaj   +1 more source

Multivalued Mizoguchi-Takahashi type rational contraction in relational metric spaces [PDF]

open access: yesSurveys in Mathematics and its Applications, 2023
In this paper we establish a result in the fixed point theory of multivalued mappings. This is done by combining three prevalent trends in fixed point theory. Some consequences of the main theorem are discussed.
Binayak S. Choudhury   +3 more
doaj  

Notes on Knaster-Tarski Theorem versus Monotone Nonexpansive Mappings

open access: yesMoroccan Journal of Pure and Applied Analysis, 2018
The purpose of this note is to discuss the recent paper of Espínola and Wiśnicki about the fixed point theory of monotone nonexpansive mappings. In their work, it is claimed that most of the fixed point results of this class of mappings boil down to the ...
Khamsi Mohamed Amine
doaj   +1 more source

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

Dependences related to strict binary relations

open access: yesTheoretical Computer Science, 2005
AbstractIn this paper we study dependences on a free monoid X* and their relations to strict binary relations on X*. As a consequence we characterize strict binary relations by the notion of dependence. Moreover, some results concerning the relationship between dependences and codes are also obtained.
Shyr-Shen Yu, Y. T. Yeh, H. K. Hsiao
openaire   +2 more sources

Selective games on binary relations

open access: yesTopology and its Applications, 2015
28 ...
Dias, Rodrigo R., Scheepers, Marion
openaire   +4 more sources

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