Results 21 to 30 of about 1,219,666 (262)

Fixed points as Nash equilibria

open access: yesFixed Point Theory and Applications, 2006
The existence of fixed points for single or multivalued mappings is obtained as a corollary of Nash equilibrium existence in finitely many players games.
Juan Pablo Torres-Martínez
doaj   +2 more sources

On Essential Fixed Points [PDF]

open access: yesProceedings of the American Mathematical Society, 1959
Wenn jede stetige Abbildung des kompakten Hausdorffschen Raumes \(X\) in sich wenigstens einen Fixpunkt hat, so ist \(p \in X\) wesentlicher Fixpunkt von \(f: X \rightarrow p\). [\glqq Wesentlich\grqq{} bedeutet: Zu jeder Umgebung \(U\) von \(p\) gibt es in \(X^X\) (kompakt-offen topologisiert) eine Umgebung \(N\) von \(f\), so daß jedes \(g \in N ...
openaire   +2 more sources

Existence of almost fixed points for random operators with application in game theory

open access: yesResults in Nonlinear Analysis, 2020
We introduce the notion of the random ε-fixed point for random operators. Then we prove some existence theorems in order to apply this results in game theory for example we will prove existence of ε-random Nash equilibrium in some class of random games ...
Oskar Górniewicz
doaj  

Global Wilson–Fisher fixed points

open access: yesNuclear Physics B, 2017
The Wilson–Fisher fixed point with O(N) universality in three dimensions is studied using the renormalisation group. It is shown how a combination of analytical and numerical techniques determine global fixed points to leading order in the derivative ...
Andreas Jüttner   +2 more
doaj   +1 more source

Fixed Points for w-Contractive Multimaps

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2009
Using the generalized Caristi's fixed point theorems we prove the existence of fixed points for self and nonself multivalued weakly w-contractive maps.
Abdul Latif, Marwan A. Kutbi
doaj   +1 more source

Existence and Data Dependence of Fixed Points and Strict Fixed Points for Contractive-Type Multivalued Operators

open access: yesFixed Point Theory and Applications, 2007
The purpose of this paper is to present several existence and data dependence results of the fixed points of some multivalued generalized contractions in complete metric spaces. As for application, a continuation result is given.
Cristian Chifu, Gabriela Petruşel
doaj   +2 more sources

Related G-metrics and Fixed Points

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2018
For a single valued mapping T in a G-complete G-metric space (X, d), we show that if Tn,for some n> 1, is a contraction, then T itself is a contraction under another related G-metric d′. We establish moreover that if T is uniformly continuous, then d′ is
Gaba Yaé Ulrich O.
doaj   +1 more source

On a Common Jungck Type Fixed Point Result in Extended Rectangular b-Metric Spaces

open access: yesAxioms, 2019
In this paper, we present a Jungck type common fixed point result in extended rectangular b-metric spaces. We also give some examples and a known common fixed point theorem in extended b-metric spaces.
Hassen Aydi   +3 more
doaj   +1 more source

Entropy as a Fixed Point

open access: yesTheoretical Computer Science, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Unique fixed points vs. least fixed points

open access: yesTheoretical Computer Science, 1980
AbstractThe aim of this paper is to compare two approaches to the semantics of programming languages: the least fixed point approach, and the unique fixed point approach. Briefly speaking, we investigate here the problem of existence of extensions of algebras with the unique fixed point property to ordered algebras with the least fixed point property ...
openaire   +2 more sources

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