Results 11 to 20 of about 697 (297)

Common fixed point theorems for commuting k-uniformly Lipschitzian mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We give a common fixed point existence theorem for any sequence of commuting k-uniformly Lipschitzian mappings (eventually, for k=1 for any sequence of commuting nonexpansive mappings) defined on a bounded and complete metric space (X,d) with uniform ...
M. Elamrani, A. B. Mbarki, B. Mehdaoui
doaj   +2 more sources

A New Common Fixed Point Theorem for Three Commuting Mappings

open access: yesAxioms, 2020
In the present paper, we propose a common fixed point theorem for three commuting mappings via a new contractive condition which generalizes fixed point theorems of Darbo, Hajji and Aghajani et al.
Meryeme El Harrak, Ahmed Hajji
doaj   +2 more sources

Commuting Traces of Multiadditive Mappings

open access: yesJournal of Algebra, 1997
Let \(R\) be a prime ring. The problem of determining those \(n\)-additive maps \(M\colon R^n\to R\) whose trace is commuting (that is, \([M(x,\dots,x),x]=0\) for all \(x\in R\)) was solved for \(n=1\) [J. Algebra 156, No. 2, 385-394 (1993; Zbl 0773.16017)] and \(n=2\) [Trans. Am. Math. Soc. 335, No.
Lee, P.-H   +3 more
openaire   +2 more sources

Common coincidence points of R-weakly commuting maps

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
A common coincidence point theorem for R-weakly commuting mappings is obtained. Our result extend several ones existing in literature.
Tayyab Kamran
doaj   +2 more sources

Common fixed point theorem for hybrid pairs of r-weakly commuting mappings [PDF]

open access: yesSurveys in Mathematics and its Applications, 2010
In this paper we established a common fixed point theorem for four mappings f,g (crisp) and S,T (fuzzy) of R-weakly commuting mapping in a metric space.
Peer Mohammad   +2 more
doaj   +2 more sources

A common fixed point theorem for a commuting family of nonexpansive mappings one of which is multivalued

open access: yesFixed Point Theory and Applications, 2011
Bruck [Pac. J. Math. 53, 59-71 1974 Theorem 1] proved that for a nonempty closed convex subset E of a Banach space X, if E is weakly compact or bounded and separable and suppose that E has both (FPP) and (CFPP), then for any commuting family S of ...
Nanan Narawadee, Dhompongsa Sompong
doaj   +1 more source

On common fixed points of pairs of a single and a multivalued coincidentally commuting mappings in D-metric spaces [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
The present paper studies some common fixed-point theorems for pairs of a single-valued and a multivalued coincidentally commuting mappings in D-metric spaces satisfying a certain generalized contraction condition.
B. C. Dhage   +2 more
doaj   +2 more sources

Commuting and Centralizing Mappings in Prime Rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1990
Let R R be a ring. A mapping
J. Vukman
openaire   +4 more sources

Variants of R-weakly commuting mappings and common fixed point theorems in intuitionistic fuzzy metric spaces

open access: yesKuwait Journal of Science, 2014
In this paper, we utilize the notion of common limit range property with variants ofย  -weakly commuting mappings and obtain some common fixed point theorems in intuitionistic fuzzy metric spaces.
SUNNY CHAUHAN   +3 more
doaj   +1 more source

Some New Common Fixed Point Theorems under Strict Contractive Conditions in G-Metric Spaces

open access: yesJournal of Applied Mathematics, 2012
We introduce some new types of pairs of mappings (๐‘“,๐‘”) on G-metric space called G-weakly commuting of type (๐ด๐‘“) and G-R-weakly commuting of type (๐ด๐‘“).
Zead Mustafa
doaj   +1 more source

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