Results 31 to 40 of about 1,263,769 (305)

Dynamics and Bifurcation of $x_{n+1}=\frac{\alpha+\beta x_{n-2}}{A+Bx_{n}+C x_{n-2}}$

open access: yesJournal of Mathematical Sciences and Modelling, 2021
In this paper, we study dynamics and bifurcation of the third order rational difference equation \begin{eqnarray*} x_{n+1}=\frac{\alpha+\beta x_{n-2}}{A+Bx_{n}+Cx_{n-2}}, ~~n=0, 1, 2, \ldots \end{eqnarray*} with positive parameters $\alpha, \beta, A, B ...
Mohammad Saleh, Batool Raddad
doaj   +1 more source

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

Fixed points and self-reference

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
It is shown how Gödel's famous diagonal argument and a generalization of the recursion theorem are derivable from a common construation. The abstract fixed point theorem of this article is independent of both metamathematics and recursion theory and is ...
Raymond M. Smullyan
doaj   +1 more source

Intuitionistic fixed point logic [PDF]

open access: yesAnnals of Pure and Applied Logic, 2021
We study the system IFP of intuitionistic fixed point logic, an extension of intuitionistic first-order logic by strictly positive inductive and coinductive definitions. We define a realizability interpretation of IFP and use it to extract computational content from proofs about abstract structures specified by arbitrary classically true disjunction ...
Ulrich Berger 0001, Hideki Tsuiki
openaire   +3 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  

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 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.
Petruşel Gabriela, Chifu Cristian
doaj   +2 more sources

On characterizations of fixed points

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We give some necessary and sufficient conditions for the existence of fixed points of a family of self mappings of a metric space and we establish an equivalent condition for the existence of fixed points of a continuous compact mapping of a metric space.
Zeqing Liu, Lili Zhang, Shin Min Kang
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

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

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