Results 31 to 40 of about 831,822 (202)

New Existence Results and Generalizations for Coincidence Points and Fixed Points without Global Completeness

open access: yesAbstract and Applied Analysis, 2013
Some new existence theorems concerning approximate coincidence point property and approximate fixed point property for nonlinear maps in metric spaces without global completeness are established in this paper.
Wei-Shih Du
doaj   +1 more source

A note on the relationship between the isotone assumption of the Abian-Brown fixed point theorem and Abian’s most basic fixed point theorem [PDF]

open access: yes, 2014
In a recent paper Xie et al. (Fixed Point Theory Appl. 2013:192, 2013) gave several extensions and some applications of the Abian-Brown (AB) fixed point theorem.
Luckraz, Shravan
core   +1 more source

Note on KKM maps and applications

open access: yesFixed Point Theory and Applications, 2006
We apply the KKM technique to study fixed point theory, minimax inequality and coincidence theorem. Some new results on Fan-Browder fixed point theorem, Fan's minimax theorem and coincidence theorem are obtained.
B. S. Lee   +3 more
doaj   +2 more sources

Homological selections and fixed-point theorems

open access: yes, 2016
A homological selection theorem for C-spaces, as well as, a finite-dimensional homological selection theorem is established. We apply the finite-dimensional homological selection theorem to obtain fixed-point theorems for usco homologically UV^n set ...
Valov, Vesko
core   +1 more source

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 note on fixed-point theorems

open access: yesJournal of Approximation Theory, 1982
AbstractIn an earlier note, S. P. Singh gave an extension of a theorem of Brosowski in a normed linear space setting. Variants of this theorem are considered in the context of strictly convex, reflexive, and inner product spaces.
M.D Humphries, T.L Hicks
openaire   +2 more sources

Approximate fixed point theorems [PDF]

open access: yesScientific Annals of the A.I.I. Cuza University, 2001
The authors discuss weakenings of the conditions in the fixed point theorems of Brouwer, Kakutani and Banach which still guarantee the existence of approximate fixed points.
TORRE, ANNA, Tijs S., Brânzei R.
openaire   +7 more sources

A Fixed Point Theorem for Discontinuous Functions [PDF]

open access: yes
In this paper we prove the following fixed point theorem. Consider a non-empty bounded polyhedron P and a function Æ : P → P such that for every x є P for which Æ (x) ≠ x there exists δ > 0 such that for all y, z є B (x, δ) ∩ P it holds that (Æ(y)-y)2 (Æ(
Herings,Jean-Jacques   +3 more
core   +7 more sources

Partial metric spaces with negative distances and fixed point theorems [PDF]

open access: yes, 2015
In this paper we consider partial metric spaces in the sense of O'Neill. We introduce the notions of strong partial metric spaces and Cauchy functions.
Assaf, Samer, Pal, Koushik
core  

A fixed point theorem for analytic functions

open access: yesFixed Point Theory and Applications, 2005
We prove that each analytic self-map of the open unit disk which interpolates between certain n-tuples must have a fixed point.
Valentin Matache
doaj   +2 more sources

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