Results 21 to 30 of about 3,542,049 (321)

Common Fixed Point Results on Complex-Valued $S$-Metric Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2020
Banach's contraction principle has been improved and extensively studied on several generalized metric spaces. Recently, complex-valued $S$-metric spaces have been introduced and studied for this purpose.
Nihal Taş, Nihal Yilmaz Ozgur
doaj   +1 more source

Common fixed points and partial orders [PDF]

open access: yesProceedings of the American Mathematical Society, 1979
It is observed that certain theorems on common fixed points may be derived from a theorem on partially ordered sets.
openaire   +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

Some common fixed point theorem of rational contractive mappings in dislocated metric spaces

open access: yesTopological Algebra and its Applications, 2023
We improve the rational contractive condition and prove the common fixed point in the dislocated metric spaces. In addition, the new generalized rational contraction has existence of a common solution for a system of integral equations.
Jeevanandam Uma Maheswari   +3 more
doaj   +1 more source

Caristi Type Cyclic Contraction and Coupled Fixed Point Results in Bipolar Metric Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2020
In this paper, we establish the existence of common coupled fixed point results for new Caristi type contraction of three covariant mappings in Bipolar metric spaces. Some interesting consequences of our results are achieved.
Gagula Naveen Venkata Kishore   +3 more
doaj   +1 more source

Common fixed point theorems for compatible mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
By using a compatibility condition due to Jungck we establish some common fixed point theorems for four mappings on complete and compact metric spaces These results also generalize a theorem of Sharma and Sahu.
Kenan Taş   +2 more
doaj   +1 more source

Common fixed point theorems of contractive-type mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
Using the concept of D-metric we prove some common fixed point theorems for generalized contractive mappings on a complete D-metric space. Our results extend, improve, and unify results of Fisher and Ćirić.
Hee Soo Park, Jeong Sheok Ume
doaj   +1 more source

Compatible mappings and common fixed points [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
A generalization of the commuting mapping concept is introduced. Properties of this “weakened commutativity” are derived and used to obtain results which generalize a theorem by Park and Bae, a theorem by Hadzic, and others.
openaire   +3 more sources

Commuting functions with no common fixed point [PDF]

open access: yesTransactions of the American Mathematical Society, 1969
Introduction. Let f and g be continuous functions mapping the unit interval I into itself which commute under functional composition, that is, f(g(x))=g(f(V)) for all x in I. In 1954 Eldon Dyer asked whetherf and g must always have a common fixed point, meaning a point z in I for which f(z) =z=g(z). A. L.
openaire   +2 more sources

New coincidence and common fixed point theorems

open access: yesApplied General Topology, 2009
In this paper, we obtain some extensions and a generalization of a remarkable fixed point theorem of Proinov. Indeed, we obtain some coincidence and fixed point theorems for asymptotically regular non-self and self-maps without requiring continuity and ...
S.L. Singh   +2 more
doaj   +1 more source

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