Results 21 to 30 of about 35,198 (261)

Fixed Point Theorems In 2-Banach Spaces For Non-expansive Type Conditions

open access: yesCumhuriyet Science Journal, 2022
Fixed point theorems had been established and developed under various non-expansive type conditions on different metric spaces. In this paper, we have generalized (ψ,φ) - weak contractions, which is the generalizations of F-contraction, (ϕ,F ...
Krishnadhan Sarkar   +2 more
doaj   +1 more source

Involutions with fixed points in 2-Banach spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
Some results on fixed points of involution maps in 2-Banach spaces have been obtained. These are extensions of those proved earlier by Goebel-Zlotkiewicz, Sharma-Sharma, Assad-Sessa and Iśeki.
M. S. Khan, M. D. Khan
doaj   +1 more source

COINCIDENCE POINTS OF COMPATIBLE MULTIVALUED MAPPINGS

open access: yesDemonstratio Mathematica, 1996
Let \(CB(X)\) be the space of nonempty bounded closed subsets of a metric space \((X,d)\) with the Hausdorff metric. Mappings \(T:X\to CB(X)\), \(f:X\to X\) are said to be compatible if, for any sequence \(\{x_n\}\subset X\) satisfying \(\lim_{n\to\infty} fx_n\in \lim_{n\to\infty} Tx_n\) we have \(\lim_{n\to\infty} H(fTx_n,Tfx_n)=0\).
Azam, Akbar, Beg, Ismat
openaire   +2 more sources

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.
Saima Naheed, Arjamand Bano
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   +1 more source

Coincidence Theorem and Saddle Point Theorem [PDF]

open access: yesProceedings of the American Mathematical Society, 1986
We discuss Browder’s coincidence theorem and derive a saddle point theorem from it.
openaire   +1 more source

Coincidence Points in Generalized Metric Spaces

open access: yesSet-Valued and Variational Analysis, 2014
The authors continue the research (see [\textit{A. V. Arutyunov}, Dokl. Math. 76, No. 2, 665--668 (2007; Zbl 1152.54351); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 416, No. 2, 151--155 (2007)]) on coincidence points for maps (single-valued and set-valued) such that one of them is \(\beta\)-Lipschitz continuous and the second one is an ...
Arutyunov A.V., Zhukovskiy S.E.
openaire   +4 more sources

FIXED POINTS AND COINCIDENCES IN TORUS BUNDLES [PDF]

open access: yesJournal of Topology and Analysis, 2011
Minimum numbers of fixed points or of coincidence components (realized by maps in given homotopy classes) are the principal objects of study in topological fixed point and coincidence theory. In this paper, we investigate fiberwise analoga and present a general approach e.g. to the question when two maps can be deformed until they are coincidence free.
openaire   +3 more sources

Rigid Cylindrical Frameworks with Two Coincident Points [PDF]

open access: yesGraphs and Combinatorics, 2018
21 pages, 3 ...
Bill Jackson   +2 more
openaire   +5 more sources

A generalized coincidence point index

open access: yesApplied General Topology, 2005
The authors acknowledge the support of A.N.D.R.U., (Contract No 03/06 Code CU 19905) and M.E.R.S., (Project No B*2501/04/04), Laboratory M.M.E.R.E.
N.M. Benkafadar, M.C. Benkara-Mostefa
openaire   +4 more sources

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