Results 81 to 90 of about 8,811,418 (192)

Coincidence Points and Common Fixed Points of Cyclic Maps by Implicit Contractive Conditions

open access: yesمجلة بغداد للعلوم
The study of common fixed points and coincidence points has occupied a large part of the priorities of researchers, especially in the metric space and its generalizations.
Abbas Karim Nahi, Salwa Salman Abed
doaj   +1 more source

Common fixed points for increasing operators in posets and related semilattice properties

open access: yes, 2008
An extension of a well known theorem of R. DeMarr [Common fixed points for isotone mappings, Colloquium Math., 13 (1964), 45-48] for commuting families of increasing operators in posets is studied and we establish two corollaries concerning semilattice ...
DIVICCARO, MARIA LUIGIA   +1 more
core  

Common Fixed Points of Weakly Reciprocally Continuous Maps using a Gauge Function [PDF]

open access: yes, 2012
The aim of the present paper is to obtain a common fixed point theorem by employing the recently introduced notion of weak reciprocal continuity. We demonstrate that weak reciprocal continuity ensures the existence of fixed points under contractive ...
Gairola, Ajay   +3 more
core  

Existence of Common Fixed Points Through Auxiliary Contractions and Applications

open access: yesMathematics
In this paper, we introduce a new type of contraction, an M-auxiliary contraction, by modifying existing concepts involving auxiliary functions. We establish existence and uniqueness results for common fixed points of the proposed contraction mapping ...
Krittawit Limkul   +3 more
doaj   +1 more source

Common fixed-point results in best approximation theory

open access: yes, 2003
A common fixed-point generalization of the results of Dotson, Tarafdar, and Taylor is obtained which in turn extends a recent theorem by Jungck and Sessa to locally convex spaces.
Khan, A.R., Hussain, N.
core   +1 more source

Structural Changes in NICs: Some Evidences on Attractor Points [PDF]

open access: yes
In this paper we develop a regression and a kernel density based model for finding fixed points and attractors of dynamical systems to explore attractors of structural change for NICs.
Shapour Mohammadi, Hossein Abbasi-Nejad
core   +2 more sources

Borsuk's antipodal and fixed-point theorems for correspondences without convex values [PDF]

open access: yes
We present an extension of Borsuk's antipodal theorem (existence of a zero) for antipodally approachable correspondences without convex values. This result is a generalization of Borsuk-Ulam Theorem and has a fixed-point equivalent formulation.Borsuk's ...
Jean-Marc Bonnisseau   +3 more
core  

© Hindawi Publishing Corp. ON COMMON FIXED POINTS, PERIODIC POINTS, AND RECURRENT POINTS OF CONTINUOUS FUNCTIONS

open access: yes, 2002
It is known that two commuting continuous functions on an interval need not have a common fixed point. However, it is not known if such two functions have a common periodic point.
Aliasghar Alikhani-koopaei
core  

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