Results 1 to 10 of about 2,921,996 (278)

Convergence Theorems of Common Fixed Points for Pseudocontractive Mappings

open access: yesFixed Point Theory and Applications, 2008
We consider an implicit iterative process with mixed errors for a finite family of pseudocontractive mappings in the framework of Banach spaces. Our results improve and extend the recent ones announced by many others.
Yan Hao
doaj   +2 more sources

Weak Convergence of Two Iteration Schemes in Banach Spaces [PDF]

open access: yesEngineering and Technology Journal, 2019
In this paper, we established weak convergence theorems by using appropriate conditions for approximating common fixed points and equivalence between the convergence of the Picard-Mann iteration scheme and Liu et al iteration scheme in Banach spaces.
Salwa Abed, Zahraa Mohamed Hasan
doaj   +1 more source

Common random fixed points of compatible random operators

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
We construct a random iteration scheme and study necessary conditions for its convergence to a common random fixed point of two pairs of compatible random operators satisfying Meir-Keeler type conditions in Polish spaces. Some random fixed point theorems
Ismat Beg, Mujahid Abbas
doaj   +1 more source

Common fixed points of single-valued and multivalued maps

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We define a new property which contains the property (EA) for a hybrid pair of single- and multivalued maps and give some new common fixed point theorems under hybrid contractive conditions. Our results extend previous ones.
Yicheng Liu, Jun Wu, Zhixiang Li
doaj   +1 more source

Common fixed points for lipschitzian semigroup

open access: yesElectronic Journal of Differential Equations, 2006
Lim and Xu [4] established a fixed point theorem for uniformly Lipschitzian mappings in metric spaces with uniform normal structure. Recently, Huang and Hong [1] extended hyperconvex metric space version of this theorem, by showing a common fixed point ...
Samir Lahrech   +2 more
doaj  

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

Handle Operators of Coset Models

open access: yes
Several interesting features of coset models "without fixed points" are easily understood via Chern-Simons theory. In this paper we derive explicit formulae for the handle-squashing operator in these cosets. These operators are fixed, linear combinations
Crescimanno, Michael
core   +2 more sources

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

A note on strong convergence to common fixed points of nonexpansive mappings in Hilbert spaces [PDF]

open access: yes
The aim of this paper is to investigate the links between ${\cal T}_C$-class algorithms, CQ Algorithm and shrinking projection methods. We show that strong convergence of these algorithms are related to coherent ${\cal T}_C$-class sequences of mapping ...
Chancelier, Jean-Philippe
core  

In Praise of Unstable Fixed Points: The Way Things Actually Work

open access: yes
In recent years a fashion has grown up to ascribe great importance to ``quantum critical points'' at T=0, at the boundary between the basins of attraction to the stable fixed points of ordered ground states.
Baskaran   +8 more
core   +2 more sources

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