Results 11 to 20 of about 5,787,725 (306)

New common fixed point theorems for multivalued maps

open access: yesApplied General Topology, 2014
Common fixed point theorems for a new class of multivalued maps are obtained, which generalize and extend classical fixed point theorems of Nadler and Reich and some recent Suzuki type fixed point theorems.
S. L. Singh   +3 more
doaj   +1 more source

Near Fixed Point Theorems in Hyperspaces

open access: yesMathematics, 2018
The hyperspace consists of all the subsets of a vector space. It is well-known that the hyperspace is not a vector space because it lacks the concept of inverse element. This also says that we cannot consider its normed structure, and some kinds of fixed
Hsien-Chung Wu
doaj   +1 more source

Remarks on Recent Fixed Point Theorems

open access: yesFixed Point Theory and Applications, 2010
Coincidence and fixed point theorems for a new class of contractive, nonexpansive and hybrid contractions are proved. Applications regarding the existence of common solutions of certain functional equations are also discussed.
Mishra SN, Singh SL
doaj   +2 more sources

Generalized Caristi's Fixed Point Theorems

open access: yesFixed Point Theory and Applications, 2009
We present generalized versions of Caristi's fixed point theorem for multivalued maps. Our results either improve or generalize the corresponding generalized Caristi's fixed point theorems due to Bae (2003), Suzuki (2005), Khamsi (2008), and ...
Abdul Latif
doaj   +1 more source

Generalized fixed point theorems on metric spaces [PDF]

open access: yesMathematica Moravica, 2022
In this paper, we establish some fixed point theorems for single valued and multi-valued mappings on a complete metric space. Suzuki's and some other fixed point theorems are generalized by taking a more general contractive condition for single valued ...
Chandra Naveen   +2 more
doaj   +1 more source

Fixed point theorems for F-expanding mappings

open access: yesFixed Point Theory and Applications, 2017
Recently, Wardowski (Fixed Point Theory Appl. 2012:94, 2012) introduced a new concept of F-contraction and proved a fixed point theorem which generalizes the Banach contraction principle.
Jarosław Górnicki
doaj   +1 more source

A fixed point theorem for COFEs

open access: yesCoRR, 2023
A new fixed point principle for complete ordered families of equivalences (COFEs) is presented, which is stronger than the standard Banach-type fixed point principle.
openaire   +2 more sources

ON A QUASI FIXED-POINT THEOREM [PDF]

open access: yesBulletin of the Korean Mathematical Society, 2003
In the paper under review, the author generalizes, in some aspects, the quasi fixed-point theorem due to \textit{I. Lefebvre} [Set-Valued Anal. 9, No. 3, 273--288 (2001; Zbl 0986.54051)] and proves the following Theorem. Let \(I\) and \(J\) be any index sets.
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

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

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