Results 31 to 40 of about 58,190 (204)

On Cartwright–Littlewood fixed point theorem [PDF]

open access: yesIndagationes Mathematicae, 2022
corrections for ...
openaire   +3 more sources

Fixed Point Theorem on Multi-valued Mappings

open access: yesInternational Journal of Analysis and Applications, 2013
In this paper, we  prove a common fixed pointtheorem for two multivalued self-mappings  in complete metric spaces.
J.Maria Joseph, E. Ramganesh
doaj   +2 more sources

Application of the omitted ray fixed point theorem

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
This paper presents a nontrivial application of the omitted ray fixed point theorem. Existence of solutions arguments to nonlinear boundary value problems utilizing the Krasnoselskii fixed point theorem, Leggett-Williams fixed point theorem and their ...
Douglas Anderson, Richard Avery
doaj   +1 more source

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

A new approach to the Assad-Kirk fixed point theorem

open access: yes, 2016
Altun, Ishak/0000-0002-7967-0554; MINAK, GULHAN/0000-0002-3711-9633In the present paper, considering the Wardowski's technique, we give a new approach to the Assad-Kirk fixed point theorem on metrically convex metric spaces.
Olgun, Murat   +2 more
core   +1 more source

Functional compression-expansion fixed point theorem

open access: yesElectronic Journal of Differential Equations, 2008
This paper presents a generalization of the fixed point theorems of compression and expansion of functional type. As an application, the existence of a positive solution to a second order conjugate boundary value problem is considered. We conclude
Donal O'regan   +2 more
doaj  

Some Generalizations of Jungck's Fixed Point Theorem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2012
We are going to generalize the Jungck's fixed point theorem for commuting mappings by mean of the concepts of altering distance functions and compatible pair of mappings, as well as, by using contractive inequalities of integral type and contractive ...
J. R. Morales, E. M. Rojas
doaj   +1 more source

On the Lefschetz Fixed Point Theorem [PDF]

open access: yes, 2005
The abstract version of the Lefschetz fixed point theorem is proved which states the following: If \(X\) is a metric space and if \(X_0\subset X\) is such that \(X_0\) absorbs compact sets, \(f\:X\to X\) is a continuous map, \(f(X_0) \subset X_0\) and \(f/X_0\) is a Lefschetz map, then \(f\) is also (on \(X\)) a Lefschetz map. Here a continuous map \(f\
openaire   +2 more sources

A Schauder fixed point theorem in semilinear spaces and applications

open access: yes, 2013
In this paper we present existence and uniqueness results for a class of fuzzy fractional integral equations. To prove the existence result, we give a variant of the Schauder fixed point theorem in semilinear Banach spaces.peer ...
Vasile Lupulescu   +7 more
core   +1 more source

On Tarski’s fixed point theorem [PDF]

open access: yesProceedings of the American Mathematical Society, 2015
Proc. Amer. Math.
openaire   +4 more sources

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