Results 101 to 110 of about 3,043 (168)

Remarks on some coupled fixed point theorems in G-metric spaces

open access: yes, 2013
In this paper, we show that, unexpectedly, most of the coupled fixed point theorems in the context of (ordered) G-metric spaces are in fact immediate consequences of usual fixed point theorems that are either well known in the literature or can be ...
R. Agarwal, E. Karapınar
semanticscholar   +1 more source

Metrical fixed point theorems via locally finitely T-transitive binary relations under certain control functions

open access: yesMiskolc Mathematical Notes, 2019
In this paper, we extend relation-theoretic contraction principle due to Alam and Imdad to a nonlinear contraction using a relatively weaker class of continuous control functions employing a locally finitely T -transitive binary relation, which improves ...
A. Alam, Mohammad Arif, M. Imdad
semanticscholar   +1 more source

Some results in cone metric spaces with applications in homotopy theory

open access: yesOpen Mathematics, 2020
The self-mappings satisfying implicit relations were introduced in a previous study [Popa, Fixed point theorems for implicit contractive mappings, Stud. Cerc. St. Ser. Mat. Univ. Bacău 7 (1997), 129–133].
Nazam Muhammad   +3 more
doaj   +1 more source

Fixed and periodic points of generalized contractions in metric spaces

open access: yes, 2013
Wardowski (Fixed Point Theory Appl. 2012:94, 2012, doi:10.1186/1687-1812-2012-94) introduced a new type of contraction called F-contraction and proved a fixed point result in complete metric spaces, which in turn generalizes the Banach contraction ...
M. Abbas, Basit Ali, S. Romaguera
semanticscholar   +1 more source

Common fixed point theorem of six self-mappings in Menger spaces using (CLRST) property

open access: yesOpen Mathematics, 2018
In this paper, we study the existence and uniqueness of common fixed point of six self-mappings in Menger spaces by using the common limit range property (denoted by (CLRST)) of two pairs.
Liu Xiao-lan   +4 more
doaj   +1 more source

On Hilbert Functions of Points in Projective Space and Structure of Graded Modules

open access: yes, 2018
In this paper, we investigate the relationship between the Hilbert functions and the associated properties of the graded modules. To attain this, we construct the graded modules from the sets of points in projective space, $\mathbb{P}_k^n$ .
Mgani, Damas Karmel, Mwanzalima, Makungu
core  

Common fixed point results for mappings under nonlinear contraction of cyclic form in ordered metric spaces

open access: yes, 2013
In this paper, we introduce the notion of a cyclic (ψ,A,B)-contraction for the pair (f,T) of self-mappings on the set X. We utilize our definition to introduce some common fixed point theorems for the two mappings f and T under a set of conditions. Also,
W. Shatanawi, M. Postolache
semanticscholar   +1 more source

Common fixed points of mappings satisfying implicit contractive conditions

open access: yesFixed Point Theory and Applications, 2012
In this article we obtain, in the setting of metric spaces or ordered metric spaces, coincidence point, and common fixed point theorems for self-mappings in a general class of contractions defined by an implicit relation.
V. Berinde, F. Vetro
semanticscholar   +1 more source

Nonlinear coupled fixed point theorems in ordered generalized metric spaces with integral type

open access: yes, 2012
In this article, we study coupled coincidence and coupled common fixed point theorems in ordered generalized metric spaces for nonlinear contraction condition related to a pair of altering distance functions.
Y. Cho   +4 more
semanticscholar   +1 more source

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