Results 21 to 30 of about 357,854 (283)

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

Some results on coincidence points [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1999
In this paper we prove some coincidence point theorems for nonself single-valued and multivalued maps satisfying a nonexpansive condition. These extend fixed point theorems for multivalued maps of a number of authors.
Latif, Abdul, Tweddle, Ian
openaire   +2 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

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

Central sets and substitutive dynamical systems [PDF]

open access: yes, 2013
In this paper we establish a new connection between central sets and the strong coincidence conjecture for fixed points of irreducible primitive substitutions of Pisot type.
Luca, Marcy Barge, Q. Zamboni
core   +3 more sources

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

Self-motions of pentapods with linear platform [PDF]

open access: yes, 2015
We give a full classification of all pentapods with linear platform possessing a self-motion beside the trivial rotation about the platform. Recent research necessitates a contemporary and accurate re-examination of old results on this topic given by ...
Nawratil, Georg, Schicho, Josef
core   +1 more source

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