Results 21 to 30 of about 5,594,202 (306)

GENERALIZED FIXED POINT THEOREM

open access: yesDemonstratio Mathematica, 1983
Let X be a metric space, A be a nonempty closed convex subset of a uniformly convex Banach space \((Y,| \cdot |)\), \(CB(A)\) be the collection of all nonempty closed convex and bounded subsets of A metrized by the Hausdorff metric D. the following Krasnosielskii type fixed point theorem is proved: Suppose that \(\Gamma: A\to X\) is a continuous ...
Kisielewicz, M., Rybiński, L.
openaire   +2 more sources

Some fixed-point theorems of convex orbital $(\alpha, \beta )$-contraction mappings in geodesic spaces [PDF]

open access: yes, 2023
The aim of this paper is to broaden the applicability of convex orbital ( α , β ) $(\alpha, \beta )$ -contraction mappings to geodesic spaces. This class of mappings is a natural extension of iterated contraction mappings.
Shukla, Rahul, Rahul Shukla
core   +1 more source

Measures of noncompactness in modular spaces and fixed point theorems for multivalued nonexpansive mappings [PDF]

open access: yes, 2021
This paper is devoted to state some fixed point results for multivalued mappings in modular vector spaces. For this purpose, we study the uniform noncompact convexity, a geometric property for modular spaces which is similar to nearly uniform convexity ...
Lorenzo Ramírez, Josefa   +1 more
core   +1 more source

Some Remarks on Multidimensional Fixed Point Theorems

open access: yes, 2014
MARTINEZ-MORENO, JUAN/0000-0002-3340-2781In this paper, we show that most of the multidimensional (including coupled, tripled, quadrupled) fixed point theorems in the context of (ordered) metric spaces are, in fact, immediate consequences of well-known ...
Karapinar, E.   +3 more
core   +2 more sources

A Noncontractive Fixed Point Theorem [PDF]

open access: yesProceedings of the American Mathematical Society, 1970
The sequence Txn so constructed contains a subsequence TXnk which converges to some x X and which, by Ascoli's theorem [3], is equicontinuous. It follows in turn from (1) that the sequence Xnk is equicontinuous. To complete the proof it suffices to show xn,(t)-x(t) in B.
openaire   +1 more source

Fixed Point Theorems via α-ϱ-Fuzzy Contraction

open access: yesAxioms, 2019
Some well known results from the existing literature are extended and generalized via new contractive type mappings in fuzzy metric spaces. A non trivial supporting example is also provided to demonstrate the validity of the obtained results.
Badshah-e- Rome   +2 more
doaj   +1 more source

Approximate fixed point theorems [PDF]

open access: yesScientific Annals of the A.I.I. Cuza University, 2001
The authors discuss weakenings of the conditions in the fixed point theorems of Brouwer, Kakutani and Banach which still guarantee the existence of approximate fixed points.
TORRE, ANNA, Tijs S., Brânzei R.
openaire   +7 more sources

A Suzuki Type Fixed‐Point Theorem [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
We present a fixed‐point theorem for a single‐valued map in a complete metric space using implicit relation, which is a generalization of several previously stated results including that of Suziki (2008).
Ishak Altun, Ali Erduran
openaire   +4 more sources

Some Common Fixed Point Theorems in Menger Spaces [PDF]

open access: yes, 2013
summary:In this paper, we prove some common fixed point theorems for occasionally weakly compatible mappings in Menger spaces. An example is also given to illustrate the main result. As applications to our results, we obtain the corresponding fixed point
Chauhan, Sunny, Pant, B. D.
core   +1 more source

Common fixed point theorems and applications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
The purpose of this paper is to discuss the existence of common fixed points for mappings in general quasi-metric spaces. As applications, some common fixed point theorems for mappings in probabilistic quasi-metric spaces are given. The results presented
Hemant Kumar Pathak   +3 more
doaj   +1 more source

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