Results 61 to 70 of about 8,811,418 (192)

Approximating common fixed points of families of quasi-nonexpansive mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
This paper deals with a family of quasi-nonexpansive mappings in a uniformly convex Banach space, and the convergence of iterates generated by this family. A fixed point theorem for two quasi-nonexpansive mappings is then proved.
M. K. Ghosh, Lokenath Debnath
doaj   +1 more source

Common fixed point theorems for compatible and weakly compatible mappings [PDF]

open access: yes, 2000
Results on common fixed points for pairs of single and multivalued mappings on a complete metric space are examined. Our work establishes a common fixed point theorem for a pair of generalized contraction self-maps and a pair of set-valued ...
Elamrani, M., Mehdaoui, B.
core  

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  

Common Fixed Points, Invariant Approximation and Generalized Weak Contractions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2012
Sufficient conditions for the existence of a common fixed point of generalized -weakly contractive noncommuting mappings are derived. As applications, some results on the set of best approximation for this class of mappings are obtained.
Sumit Chandok
doaj   +1 more source

Common fixed points of maps on fuzzy metric spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
Following Grabiec's approach to fuzzy contraction principle, the purpose of this note is to obtain common fixed point theorems for asymptotically commuting maps on fuzzy metric spaces.
S. N. Mishra, Nilima Sharma, S. L. Singh
doaj   +1 more source

Common Fixed Points and Best Approximation

open access: yesJournal of Approximation Theory, 1996
The subject of the fixed points of different systems is an intensively studied domain. It is also the case in the paper under review, which main purposes are to prove a fixed-point theorem generalizing results of Dotson and Habiniak and to extend, to generalize and unify these results on fixed points and common fixed points of best approximation.
openaire   +2 more sources

Fixed point theorems via Nash Equilibria [PDF]

open access: yes
In this note we show that the fixed points of a continuous function (or of an upper semi-continuous correspondence, with non-empty and convex values) can be attained as Nash Equilibria of a game with finitely many players.
Juan Pablo Torres-Martínez
core  

$varphi$-pairs and common fixed points in cone metric spaces

open access: yes, 2008
In this paper we introduce a contractive condition, called $\varphi \textrm{-}pair$, for two mappings in the framework of cone metric spaces and we prove a theorem which assures existence and uniqueness of common fixed points for $\varphi \textrm ...
VETRO, Pasquale, DI BARI, Cristina
core   +1 more source

Common fixed points of a finite family of asymptotically pseudocontractive maps [PDF]

open access: yes, 2004
Convergence theorems for approximation of common fixed points of a finite family of asymptotically pseudocontractive mappings are proved in Banach spaces using an averaging implicit iteration ...
M. O. Osilike   +5 more
core   +1 more source

Approximation of common fixed points in 2-Banach spaces with applications

open access: yesApplied General Topology, 2019
The purpose of this paper is to establish the existence and uniqueness of common fixed points of a family of self-mappings satisfying generalized rational contractive condition in 2-Banach spaces. An example is included to justify our results.
D. Ramesh Kumar, M. Pitchaimani
doaj   +1 more source

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