Results 21 to 30 of about 4,748 (237)

New discussion on nonlocal controllability for fractional evolution system of order 1 < r < 2 $1 < r < 2$

open access: yesAdvances in Difference Equations, 2021
In this manuscript, we deal with the nonlocal controllability results for the fractional evolution system of 1 < r < 2 $1 ...
M. Mohan Raja   +4 more
doaj   +1 more source

Banach fixed point theorem for digital images

open access: yesJournal of Nonlinear Sciences and Applications, 2016
In this paper, we prove Banach fixed point theorem for digital images. We also give the proof of a theorem which is a generalization of the Banach contraction principle. Finally, we deal with an application of Banach fixed point theorem to image processing. © 2015 All rights reserved.
Ege, Ozgur, Karaca, Ismet
openaire   +4 more sources

Fixed point theorems in the study of operator equations in ordered Banach spaces and their applications

open access: yes, 2021
We use fixed point index properties and the general minorant principle (see Theorem 7.B in [12]) to prove new fixed point theorems for operators leaving invariant a cone in a Banach space. Main ideas of this work are inspired from the work in [11].
Mechrouk, Salima
core   +1 more source

A converse to Banach's fixed point theorem and its CLS-completeness [PDF]

open access: yesProceedings of the 50th Annual ACM SIGACT Symposium on Theory of Computing, 2018
Banach's fixed point theorem for contraction maps has been widely used to analyze the convergence of iterative methods in non-convex problems. It is a common experience, however, that iterative maps fail to be globally contracting under the natural metric in their domain, making the applicability of Banach's theorem limited. We explore how generally we
Constantinos Daskalakis   +2 more
openaire   +3 more sources

Existence of a unique solution for a third-order boundary value problem with nonlocal conditions of integral type

open access: yesNonlinear Analysis, 2021
The existence of a unique solution for a third-order boundary value problem with integral condition is proved in several ways. The main tools in the proofs are the Banach fixed point theorem and the Rus’s fixed point theorem. To compare the applicability
Sergey Smirnov
doaj   +1 more source

Browder-Krasnoselskii-Type Fixed Point Theorems in Banach Spaces [PDF]

open access: yesFixed Point Theory and Applications, 2010
AbstractWe present some fixed point theorems for the sum "Equation missing" of a weakly-strongly continuous map and a nonexpansive map on a Banach space "Equation missing". Our results cover several earlier works by Edmunds, Reinermann, Singh, and others.
Ravi P. Agarwal   +2 more
openaire   +3 more sources

Fixed-Point Results of F-Contractions in Bipolar p-Metric Spaces

open access: yesAxioms
In this paper, we present new findings on F-contraction in bipolar p-metric spaces. We establish a covariant Banach-type fixed-point theorem and a contravariant Reich-type fixed-point theorem based on F-contraction in these spaces.
Nabanita Konwar, Pradip Debnath
doaj   +1 more source

Fractional Langevin Equations with Nonseparated Integral Boundary Conditions

open access: yesAdvances in Mathematical Physics, 2020
In this paper, we discuss the existence of solutions for nonlinear fractional Langevin equations with nonseparated type integral boundary conditions.
Khalid Hilal   +3 more
doaj   +1 more source

On Pentagonal Controlled Fuzzy Metric Spaces with an Application to Dynamic Market Equilibrium

open access: yesJournal of Function Spaces, 2022
In this manuscript, we coined pentagonal controlled fuzzy metric spaces and fuzzy controlled hexagonal metric space as generalizations of fuzzy triple controlled metric spaces and fuzzy extended hexagonal b-metric spaces.
Aftab Hussain   +3 more
doaj   +1 more source

Fixed Point Theorems in Neutrosophic Fuzzy Metric Space and a Characterization to its Completeness [PDF]

open access: yesNeutrosophic Sets and Systems
The present research work aims to establish some basic conventional fixed point theorems such as the Banach fixed point theorem, Edelstein fixed point theorem and Kannan fixed point theorem, for a recently introduced topological space, known as the ...
Samriddhi Ghosh   +3 more
doaj   +1 more source

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