Results 11 to 20 of about 441,594 (322)

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

COINCIDENCE AND FIXED POINT THEOREMS ON PRODUCT SPACES

open access: hybridDemonstratio Mathematica, 1997
Let \(X_1,X_2, \dots, X_n\) be metric spaces, \(\text{CL} (X_i)\) be the set of nonempty closed subsets of \(X_i\), \(i=1, \dots, n\), and \(H_i\) be the related Hausdorff metric. The authors, inspired by a result of \textit{H. Kaneko} and the reviewer [Int. J. Math. Math. Sci. 12, No. 2, 257-262 (1989; Zbl 0671.54023)] consider two systems of maps \(\{
U. C. Gairola, S. N. Mishra, S. L. Singh
openalex   +2 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

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 ...
Shahzad, Naseer, Latif, Abdul
openaire   +4 more sources

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

Some fixed point results of generalized $$(\phi , \psi )$$ ( ϕ , ψ ) -contractive mappings in ordered b-metric spaces

open access: yesBMC Research Notes, 2020
Objectives The aim of this paper is to establish some fixed point, coincidence point and, coupled coincidence and coupled common fixed point results for generalized $$(\phi , \psi )$$ ( ϕ , ψ ) -contractive mappings in partially ordered b-metric spaces ...
Belay Mitiku   +2 more
doaj   +1 more source

Note on KKM maps and applications

open access: yesFixed Point Theory and Applications, 2006
We apply the KKM technique to study fixed point theory, minimax inequality and coincidence theorem. Some new results on Fan-Browder fixed point theorem, Fan's minimax theorem and coincidence theorem are obtained.
B. S. Lee   +3 more
doaj   +4 more sources

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

Algebraic Coincidence Periods Of Self – Maps Of A Rational Exterior Space Of Rank 2

open access: yesمجلة بغداد للعلوم, 2010
Let f and g be a self – maps of a rational exterior space . A natural number m is called a minimal coincidence period of maps f and g if f^m and g^m have a coincidence point which is not coincidence by any earlier iterates.
Baghdad Science Journal
doaj   +1 more source

Coincidence points in uniform spaces [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1992
Summary: We give a coincidence point theorem in sequentially complete Hausdorff uniform spaces. Our result reduces to a result of \textit{S. P. Acharya} [Yokohama Math. J. 22, 105-116 (1974; Zbl 0295.54058)].
T. Kubiak, Y. J. Cho
openaire   +3 more sources

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