Results 71 to 80 of about 2,675,768 (200)

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 for Nonlinear Quasi-Contractions of Ćirić Type

open access: yesAbstract and Applied Analysis, 2014
We establish common fixed points theorems for two self-mappings satisfying a nonlinear contractive condition of Ćirić type with a Q-function. Furthermore, using the scalarization method, we deduce some results of common fixed point in tvs-cone metric ...
Fei He
doaj   +1 more source

Common fixed points for alpha-psi-phi-contractions in generalized metric spaces

open access: yesNonlinear Analysis, 2014
We establish some common fixed point theorems for mappings satisfying an α-ψ-ϕ-contractive condition in generalized metric spaces. Presented theorems extend and generalize many existing results in the literature.
Vincenzo La Rosa, Pasquale Vetro
doaj   +1 more source

Common fixed points of monotone ρ-nonexpansive semigroup in modular spaces

open access: yesFixed Point Theory and Applications, 2020
In this paper, we consider the class of monotone ρ-nonexpansive semigroups and give existence and convergence results for common fixed points. First, we prove that the set of common fixed points is nonempty in uniformly convex modular spaces and modular ...
Noureddine El Harmouchi   +2 more
doaj   +1 more source

Results with Tripled Common Random Fixed points [PDF]

open access: yes, 2015
In this paper, we present tripled coincidence point theorems for F...............
Choudhary, Sanjay   +3 more
core   +1 more source

On common fixed and periodic points of commuting functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1998
It is known that two commuting continuous functions on an interval need not have a common fixed point. It is not known if such two functions have a common periodic point. In this paper we first give some results in this direction.
Aliasghar Alikhani-Koopaei
doaj   +1 more source

Fixed point and common fixed point theorems on ordered cone metric spaces

open access: yesApplied Mathematics Letters, 2010
AbstractIn the present work, some fixed point and common fixed point theorems for self-maps on ordered cone metric spaces, where the cone is not necessarily normal, are proved.
Altun, Ishak   +2 more
openaire   +3 more sources

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

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

Common fixed points for three or four mappings via common fixed point for two mappings

open access: yes, 2013
In this paper, we shall show that some coincidence point and common fixed point results for three or four mappings could easily be obtained from the corresponding fixed point results for two mappings.
Di Bari, Cristina, Vetro, Pasquale
openaire   +2 more sources

Home - About - Disclaimer - Privacy