Results 31 to 40 of about 864,413 (308)

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

Common fixed point theorems in Menger spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
We proved two common fixed point theorems for four self-mappings and two set-valued mappings with φ-contractive condition in a Menger space.
Chi-Ming Chen, Tong-Huei Chang
doaj   +1 more source

Common Fixed Point Theorems in a Complete 2-metric Space [PDF]

open access: yes, 2013
summary:In the present paper, we establish a common fixed point theorem for four self-mappings of a complete 2-metric space using the weak commutativity condition and $A$-contraction type condition and then extend the theorem for a class of ...
Saha, Mantu, Dey, Debashis
core   +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

Relational Meir-Keeler Contractions and Common Fixed Point Theorems

open access: yesJournal of Function Spaces, 2022
In this article, we prove some coincidence and common fixed point theorems under the relation-theoretic Meir-Keeler contractions in a metric space endowed with a locally finitely T-transitive binary relation.
Faizan Ahmad Khan   +4 more
doaj   +1 more source

On common fixed points of linear contractions [PDF]

open access: yesProceedings of the American Mathematical Society, 1990
In this note we give a short and direct proof of a result about convex semigroups of linear contractions.
openaire   +1 more source

Results on common fixed points [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We establish common fixed point theorems related with families of self mappings on metric spaces. Our results extend, improve, and unify the results due to Fisher (1977, 1978, 1979, 1981, 1984), Jungck (1988), and Ohta and Nikaido (1994).
Zeqing Liu, Jeong Sheok Ume
openaire   +2 more sources

Common Fixed-Point and Fixed-Circle Results for a Class of Discontinuous F-Contractive Mappings

open access: yesMathematics, 2022
The exploration of contractive inequalities which do not imply the continuity of the mapping at fixed points was an interesting open problem for quite some time.
Pradip Debnath
doaj   +1 more source

Some Fixed Point Theorems on Ordered Metric Spaces and Application [PDF]

open access: yes, 2010
We present some fixed point results for nondecreasing and weakly increasing operators in a partially ordered metric space using implicit relations.
Hakan Simsek   +3 more
core   +1 more source

Some Common Fixed Point Results in Modular Ultrametric Space Using Various Contractions and Their Application to Well-Posedness

open access: yesMathematics, 2023
The aim of this study is to prove the existence and uniqueness of fixed point and common fixed point theorems for self-mappings in modular ultrametric spaces.
Yahya Almalki   +3 more
doaj   +1 more source

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