Results 1 to 10 of about 431,145 (225)

A generalized coincidence point index

open access: diamondApplied General Topology, 2005
The paper is devoted to build for some pairs of continuous single-valued maps a coincidence point index. The class of pairs (f, g) satisfies the condition that f induces an epimorphism of the Cech homology groups with compact supports and coefficients in
N.M. Benkafadar, M.C. Benkara-Mostefa
doaj   +6 more sources

On random coincidence point theorems [PDF]

open access: bronzeTopological Methods in Nonlinear Analysis, 2005
The author obtains a few coincidence point theorems for a pair of single-valued and multivalued non-commuting random operators. The main result is a mild extension of the work of the author and \textit{A. Latif} [J. Math. Anal. Appl. 245, No.~2, 633--638 (2000; Zbl 0970.60074)]. Some special cases of the work of other authors are also discussed.
Naseer Shahzad
openalex   +5 more sources

A Random Coincidence Point Theorem

open access: bronzeJournal of Mathematical Analysis and Applications, 2000
Let \((\Omega ,\Sigma)\) be a measurable space, \(M\) a weakly compact subset of a Banach space \(X\), \(f:\Omega\times M\to M\) and \(T:\Omega\times M\to 2^{M}\) random operators. The main result of this note gives sufficient conditions for the existence of a random coincidence point of \(T\) and \(f\), i.e., a measurable mapping \(\xi:\Omega\to M ...
Naseer Shahzad, Abdul Latif
openalex   +4 more sources

Coincidence point theorems for multivalued mappings [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
Some new coincidence point and fixed point theorems for multivalued mappings in complete metric space are proved. The results presented in this paper enrich and extend the corresponding results in [5-16, 20-25, 29].
Shih-Sen Chang, Young-Cheng Peng
doaj   +2 more sources

Coincidence and fixed point theorems with applications

open access: bronzeTopological Methods in Nonlinear Analysis, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Qamrul Hasan Ansari   +2 more
openalex   +6 more sources

Remarks on some coupled coincidence point results in partially ordered metric spaces

open access: hybridArab Journal of Mathematical Sciences, 2014
In this paper we have used a method of reducing coupled coincidence and coupled fixed point results in partially ordered metric spaces to the respective results for mappings with one variable, even obtaining (in some cases) more general theorems.
Stojan Radenović
doaj   +2 more sources

NONLINEAR CONDITIONS FOR COINCIDENCE POINT AND FIXED POINT THEOREMS [PDF]

open access: bronzeTaiwanese Journal of Mathematics, 2012
In this paper, we first establish some new types of fixed point theorem which generalize and improve Berinde-Berinde's fixed point theorem, Mizoguchi-Takahashi's fixed point theorem and many results in [W.-S. Du, Some new results and generalizations in metric fixed point theory, Nonlinear Anal. 73 (2010), 1439-1446] and references therein.
Wei–Shih Du, Shao-Xuan Zheng
openalex   +4 more sources

On Approximate Coincidence Point Properties and Their Applications to Fixed Point Theory [PDF]

open access: yesJournal of Applied Mathematics, 2012
We first establish some existence results concerning approximate coincidence point properties and approximate fixed point properties for various types of nonlinear contractive maps in the setting of cone metric spaces and general metric spaces.
Wei-Shih Du
doaj   +4 more sources

Approximate Coincidence Point of Two Nonlinear Mappings

open access: yesJournal of Mathematics, 2013
We study the approximate coincidence point of two nonlinear functions introduced by Geraghty in 1973 and Mizoguchi and Takahashi (ℳ𝒯-function) in 1989.
Debashis Dey   +2 more
doaj   +4 more sources

New coincidence and common fixed point theorems

open access: yesApplied General Topology, 2009
In this paper, we obtain some extensions and a generalization of a remarkable fixed point theorem of Proinov. Indeed, we obtain some coincidence and fixed point theorems for asymptotically regular non-self and self-maps without requiring continuity and ...
S.L. Singh   +2 more
doaj   +4 more sources

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