Results 1 to 10 of about 54,140 (290)

A generalized coincidence point index

open access: yesApplied 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   +5 more sources

A Random Coincidence Point Theorem

open access: yesJournal 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
exaly   +6 more sources

New Quasi-Coincidence Point Polynomial Problems [PDF]

open access: yesJournal of Applied Mathematics, 2013
Let F:ℝ×ℝ→ℝ be a real-valued polynomial function of the form F(x,y)=as(x)ys+as-1(x)ys-1+⋯+a0(x), where the degree s of y in F(x,y) is greater than or equal to 1.
Yi-Chou Chen, Hang-Chin Lai
doaj   +4 more sources

New Existence Results and Generalizations for Coincidence Points and Fixed Points without Global Completeness [PDF]

open access: yesAbstract and Applied Analysis, 2013
Some new existence theorems concerning approximate coincidence point property and approximate fixed point property for nonlinear maps in metric spaces without global completeness are established in this paper.
Wei-Shih Du
doaj   +4 more sources

Coincidence Point of Edelstein Type Mappings in Fuzzy Metric Spaces and Application to the Stability of Dynamic Markets

open access: yesAxioms, 2023
In this paper, we prove a coincidence point result for a pair of mappings satisfying Edelstein-type contractive condition on fuzzy metric spaces. We describe the equilibrium of a simple demand–supply model of a dynamic market by the coincidence point of ...
Satish Shukla   +3 more
doaj   +3 more sources

A note on noncompact collectively coincidence point theory

open access: yesPeriodica Mathematica Hungarica, 2023
AbstractIn this paper we present a variety of collectively fixed point and coincidence point results where the maps are not necessarily compact. Our arguments are based on a very general fixed point result in the literature.
Donal O’Regan
exaly   +2 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   +3 more sources

Fixed point results of weakly contraction mappings in partially ordered b-metric spaces

open access: yesBMC Research Notes, 2022
Objectives We explored the results of fixed point, coincidence point and coupled coincidence point for the mappings in an ordered metric spaces. Our results generalized and extended the well-known results in the literature.
K. Kalyani, N. Seshagiri Rao
doaj   +1 more source

Fixed point results for weak contractions in partially ordered b-metric space

open access: yesBMC Research Notes, 2021
Objectives We explore the existence of a fixed point as well as the uniqueness of a mapping in an ordered b-metric space using a generalized $$({\check{\psi }}, \hat{\eta })$$ ( ψ ˇ , η ^ ) -weak contraction.
N. Seshagiri Rao, K. Kalyani, K. Prasad
doaj   +1 more source

Coincident-point rigidity in normed planes

open access: yesArs Mathematica Contemporanea, 2023
A bar-joint framework $(G,p)$ is the combination of a graph $G$ and a map $p$ assigning positions, in some space, to the vertices of $G$. The framework is rigid if every edge-length-preserving continuous motion of the vertices arises from an isometry of the space.
Sean Dewar, John Hewetson, Anthony Nixon
openaire   +4 more sources

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