Results 11 to 20 of about 2,889,886 (279)

Compatible mappings and common fixed points [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
A generalization of the commuting mapping concept is introduced. Properties of this “weakened commutativity” are derived and used to obtain results which generalize a theorem by Park and Bae, a theorem by Hadzic, and others.
Gerald Jungck
doaj   +3 more sources

Results on common fixed points [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We establish common fixed point theorems related with families of self mappings on metric spaces. Our results extend, improve, and unify the results due to Fisher (1977, 1978, 1979, 1981, 1984), Jungck (1988), and Ohta and Nikaido (1994).
Zeqing Liu, Jeong Sheok Ume
doaj   +2 more sources

Common Coincidence Points and Common Fixed Points in Fuzzy Semi-Metric Spaces [PDF]

open access: yesMathematics, 2018
We propose the so-called fuzzy semi-metric space in which the symmetric condition is not assumed to be satisfied. In this case, there are four kinds of triangle inequalities that should be considered.
Hsien-Chung Wu
doaj   +3 more sources

Compatible mappings and common fixed points “revisited” [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
A fixed point theorem involving a Meir-Keeler type contraction principle is refined by diminishing continuity requirements.
Gerald Jungck
doaj   +3 more sources

Unique Common Fixed Points for Expansive Maps

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2023
In this work, we establish three common fixed point results for expansive maps satisfying implicit relations in metric and dislocated metric spaces. We do this by utilizing recently developed concept of occasionally weakly biased maps of type A.
Hadeel Z. Alzumi   +2 more
doaj   +3 more sources

Common fixed points of set-valued mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
The main purpose of this paper is to obtain a common fixed point for a pair of set-valued mappings of Greguš type condition. Our theorem extend Diviccaro et al. (1987), Guay et al. (1982), and Negoescu (1989).
M. R. Singh, L. S. Singh, P. P. Murthy
doaj   +3 more sources

Common fixed points under strict conditions [PDF]

open access: yesMathematica Moravica, 2020
In this contribution, three new concepts called reciprocally continuous, strictly subweakly compatible and strictly subreciprocally continuous single and multivalued mappings are given for obtention some common fixed point theorems in a metric space. Our
Bouhadjera Hakima   +2 more
doaj   +1 more source

Common Fixed Points of Commuting Mappings [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
Let X X be a dendroid and S S an abelian semigroup of continuous monotone self-mappings of X X . A point x ϵ X x\epsilon X is fixed under S S if g ( x ) = x g(x) = x for all
Gray, William J., Smith, Carol M.
openaire   +2 more sources

Some Common Fixed Points Theorems of Four Weakly Compatible Mappings in Metric Spaces

open access: yesمجلة بغداد للعلوم, 2021
In this paper, we proved coincidence points theorems for two pairs mappings which are defined on nonempty subset   in metric spaces by using condition (1.1). As application, we established a unique common fixed points theorems for these mappings by using
Yusra Jarallah Ajeel   +1 more
doaj   +1 more source

Some Fixed Point Theorems in Fuzzy n-Normed Spaces [PDF]

open access: yes, 2010
The main purpose of this paper is to study the existence of a fixed points in fuzzy n-normed spaces. we proved our main results, a fixed point theorem for a self mapping and a common fixed point theorem for a pair of weakly compatible mappings on fuzzy n-
Elagan, Sayed Khalil   +1 more
core   +1 more source

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