Results 21 to 30 of about 431,145 (225)

Fixed point results of $(\phi,\psi)$-weak contractions in ordered $b$-metric spaces

open access: yesCubo, 2022
The purpose of this paper is to prove some results on fixed point, coincidence point, coupled coincidence point and coupled common fixed point for the mappings satisfying generalized $(\phi, \psi)$-contraction conditions in complete partially ordered ...
N. Seshagiri Rao, K. Kalyani
doaj   +1 more source

On Changing Fixed Points and Coincidences to Roots [PDF]

open access: yesProceedings of the American Mathematical Society, 1992
The coincidence problem, finding solutions to f ( x ) = g ( x ) f(x) = g(x) , can sometimes be converted to a root problem, finding solutions to σ ( x ) = a \sigma (x) = a .
Robin Brooks, Peter Wong
openaire   +2 more sources

Nonunique Coincidence Point Results via Admissible Mappings

open access: yesJournal of Function Spaces, 2021
This paper is aimed at presenting some coincidence point results using admissible mapping in the framework of the partial b-metric spaces. Observed results of the article cover a number of existing works on the topic of “investigation of nonunique fixed ...
Erdal Karapınar   +2 more
doaj   +1 more source

On Some Coincidence Best Proximity Point Results

open access: yesJournal of Mathematics, 2021
In this paper, we discuss some (coincidence) best proximity point results for generalized proximal contractions and λ−μ-proximal Geraghty contractions in controlled metric type spaces. To clarify our study, various examples are given and some conclusions
Naeem Saleem   +3 more
doaj   +1 more source

Probabilistic (ω,γ,ϕ)-contractions and coupled coincidence point results

open access: yesAIMS Mathematics, 2021
In this paper, we introduce the notion of probabilistic $ (\omega, \gamma, \phi) $-contraction and establish the existence coupled coincidence points for mixed monotone operators subjected to the introduced contraction in the framework of ordered Menger $
Manish Jain   +3 more
doaj   +1 more source

Coincidence summing correction methods and influence factors of γ spectrum

open access: yesHe jishu, 2022
BackgroundIn the radiation environmental quality measurement or emergency measurement, one of the factors that influence the measurement results of γ spectrum activity is the cascade coincidence summing effect of multienergy nuclides.PurposeThis study ...
ZHANG Lei
doaj   +1 more source

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

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   +1 more source

On common fixed point of generalized contractive mappings in metric spaces [PDF]

open access: yesSurveys in Mathematics and its Applications, 2012
Existence of common fixed points is established for two self-mappings satisfying a generalized contractive condition. The presented results generalize several well known comparable results in the literature. We also study well-posedness of a common fixed
Mujahid Abbas, Hassen Aydi
doaj  

Fixed point and coincidence point theorems

open access: yesTamkang Journal of Mathematics, 2012
In this paper, we present a generalization of some fixed point and coincidence point theorems using the notion of a on a complete metric space.Consequently, we improve and generalize various results existing in the literature.
Arjamand Bano, Saima Naheed
openaire   +3 more sources

On the structure of the set of coincidence points

open access: yesSbornik: Mathematics, 2015
We consider the set of coincidence points for two maps between metric spaces. Cardinality, metric and topological properties of the coincidence set are studied. We obtain conditions which guarantee that this set (a) consists of at least two points; (b) consists of at least n points; (c) contains a countable subset; (d) is uncountable.
Arutyunov A.V., Gel'man B.D.
openaire   +4 more sources

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