Results 21 to 30 of about 35,903 (255)

Coincidence points of mappings in Banach spaces [PDF]

open access: yesFixed Point Theory, 2020
In this article we prove an existence theorem for coincidence points of mappings in Banach spaces. This theorem generalizes the Kantorovich fixed point theorem.
openaire   +2 more sources

On almost coincidence points in generalized convex spaces

open access: yesFixed Point Theory and Applications, 2006
We prove an almost coincidence point theorem in generalized convex spaces. As an application, we derive a result on the existence of a maximal element and an almost coincidence point theorem in hyperconvex spaces.
Mitrović Zoran D
doaj   +2 more sources

Common coincidence points for Nadler’s type hybrid fuzzy contractions

open access: yesJournal of Inequalities and Applications, 2023
In the framework of complete metric spaces, the major objective of this paper is to investigate if a common coincidence point exists for more than two fuzzy mappings meeting the criteria of hybrid fuzzy contractions of Nadler’s type in connection with ...
Shazia Kanwal   +5 more
doaj   +1 more source

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

Coincidence Continuation Theory for Multivalued Maps with Selections in a Given Class

open access: yesAxioms, 2020
This paper considers the topological transversality theorem for general multivalued maps which have selections in a given class of maps.
Donal O’Regan
doaj   +1 more source

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

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

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

New Quasi-Coincidence Point Polynomial Problems [PDF]

open access: yesJournal of Applied Mathematics, 2013
LetF:ℝ×ℝ→ℝbe a real-valued polynomial function of the formF(x,y)=as(x)ys+as-1(x)ys-1+⋯+a0(x), where the degreesofyinF(x,y)is greater than or equal to1. For arbitrary polynomial functionf(x)∈ℝ[x],x∈ℝ, we will find a polynomial solutiony(x)∈ℝ[x]to satisfy the following equation: (*):F(x,y(x))=af(x), wherea∈ℝis a constant depending on the solutiony(x ...
Chen, Yi-Chou, Lai, Hang-Chin
openaire   +3 more sources

An application of KKM-map principle

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1992
The following theorem is proved and several fixed point theorems and coincidence theorems are derived as corollaries. Let C be a nonempty convex subset of a normed linear space X, f:C→X a continuous function, g:C→C continuous, onto and almost quasi ...
A. Carbone
doaj   +1 more source

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