Results 1 to 10 of about 55 (54)

Existence of a solution of Hilfer fractional hybrid problems via new Krasnoselskii-type fixed point theorems

open access: yesOpen Mathematics, 2021
This work intends to treat the existence of mild solutions for the Hilfer fractional hybrid differential equation (HFHDE) with linear perturbation of first and second type in partially ordered Banach spaces. First, we establish the results concerning the
Gabeleh Moosa   +3 more
doaj   +1 more source

Existence of positive solutions for a class of BVPs in Banach spaces

open access: yes, 2021
In this work, we use index fixed point theory for perturbation of expansive mappings by £-set contractions to study the existence of bounded positive solutions for a class of two-point boundary value problem (BVP) associated to second-order nonlinear ...
BENZENATI, Lyna   +2 more
core   +2 more sources

On Darbo’s fixed point principle

open access: yesMoroccan Journal of Pure and Applied Analysis, 2023
In this paper, we prove the following generalization of the classical Darbo fixed point principle : Let X be a Banach space and µ be a montone measure of noncompactness on X which satisfies the generalized Cantor intersection property.
Taoudi Mohamed Aziz
doaj   +1 more source

Global optimum solutions for a system of (k, ψ)-Hilfer fractional differential equations: Best proximity point approach

open access: yesDemonstratio Mathematica, 2023
In this article, a class of cyclic (noncyclic) operators are defined on Banach spaces via concept of measure of noncompactness using some abstract functions. The best proximity point (pair) results are manifested for the said operators. The obtained main
Patle Pradip Ramesh   +2 more
doaj   +1 more source

Solvability for a nonlocal dispersal model governed by time and space integrals

open access: yesOpen Mathematics, 2022
This work is to analyze a nonlocal dispersal model governed by a Volterra type integral and two space integrals. A weighted integral is included, and an existence result of solutions for this model is proved.
Yu Yang-Yang, Wang Fu-Zhang
doaj   +1 more source

Generalization of Darbo type generalized F - contraction and Consequences.

open access: yes, 2023
The main intention of this work is to introduce some new generalized F-contraction in the setting of abstract Banach space. Thereafter we prove some Darbo type fixed point theorems and its consequences using measure of non-compactness.
Vishal Nikam1   +2 more
core   +1 more source

Expansion-compression fixed point theorem of Leggett-Williams type for the sum of two operators and applications for some classes of BVPs

open access: yes, 2023
The purpose of this work is to establish an extension of a Leggett- Williams type expansion-compression fixed point theorem for a sum of two operators. As illustration, our approach is applied to prove the existence of non-trivial, nonnegative solutions ...
GEORGIEV, Svetlin G.   +2 more
core   +1 more source

Generalization of Darbo-type theorem and application on existence of implicit fractional integral equations in tempered sequence spaces

open access: yesAlexandria Engineering Journal, 2022
The aim of this work is to give some fixed point results based on the technique of measure of noncompactness which extend the classical Darbo’s theorem.
Anupam Das   +3 more
doaj   +1 more source

Existence of solutions for an infinite system of Hilfer fractional boundary value problems in tempered sequence spaces

open access: yesAlexandria Engineering Journal, 2023
This article aims to study the existence of the solutions to the infinite system of Hilfer fractional differential equations in tempered sequence spaces.
Inzamamul Haque   +2 more
doaj   +1 more source

Some noncompact types of fixed point results in the generalized Banach spaces with respect to the G–weak topology contexts and applications

open access: yesJournal of Inequalities and Applications, 2023
This research deals with Krasnoselskii’s fixed point theorem where the entries operators do not need to be G-weakly compact and contraction. These results were obtained by using the so-called generalized measure of weak noncompactness and some user ...
Noura Laksaci   +4 more
doaj   +1 more source

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