Results 51 to 60 of about 289 (110)

Discontinuous solutions of delay fractional integral equation via measures of noncompactness [PDF]

open access: yes, 2023
This article considers the existence and the uniqueness of monotonic solutions of a delay functional integral equation of fractional order in the weighted Lebesgue space $ L_1^N({\mathbb{R}}^+) $. Our analysis uses a suitable measure of noncompactness, a
Mohamed M. A. Metwali   +1 more
core   +1 more source

Existence and stability of solutions for a system of quadratic integral equations in Banach algebras

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2020
The aim of this paper is to prove the existence and stability of solutions of a system of quadratic integral equations in the Banach algebra of continuous and bounded functions on unbounded rectangle.
Said Baghdad
doaj  

An existence result for a class of nonlinear integral equations of fractional orders [PDF]

open access: yes, 2016
Using a measure of non-compactness argument, we study in this paper the existence of solutions for a class of functional equations involving a fractional integral with respect to another function.
Agarwala, Ravi P., Samet, Bessem
core   +2 more sources

A Note on the Existence and Optimal Control of Atangana–Baleanu Fractional Stochastic Integrodifferential System With Noninstantaneous Impulses

open access: yesOptimal Control Applications and Methods, Volume 46, Issue 6, Page 2595-2611, November/December 2025.
Optimal Control of AB Caputo Fractional Stochastic Integrodifferential Control System with Noninstantaneous Impulses. ABSTRACT This study is concerned with the existence of mild solution and optimal control for the Atangana–Baleanu fractional stochastic integrodifferential system with noninstantaneous impulses in Hilbert spaces. We verify the existence
Murugesan Johnson   +2 more
wiley   +1 more source

An Innovative Approach to the Product of k‐Hybrid Functional Integral Equation

open access: yesAbstract and Applied Analysis, Volume 2025, Issue 1, 2025.
In this paper, our study focuses on exploring the solutions of a product of k‐hybrid functional integral equation which is characterized by multiple delays. We prove the existence of continuous, well‐defined, and bounded solutions on the semi‐infinite interval.
A. M. A. El-Sayed   +2 more
wiley   +1 more source

An extension of Darbo’s fixed point theorem for a class of system of nonlinear integral equations

open access: yesAdvances in Difference Equations, 2020
We introduce an extension of Darbo’s fixed point theorem via a measure of noncompactness in a Banach space. By using our extension we study the existence of a solution for a system of nonlinear integral equations, which is an extended result of (Aghajani
Amar Deep   +4 more
doaj   +1 more source

On the Existence Results for a Mixed Hybrid Fractional Differential Equations of Sequential Type

open access: yesFractal and Fractional, 2023
In this article, we study the existence of a solution to the mixed hybrid fractional differential equations of sequential type with nonlocal integral hybrid boundary conditions. The main results are established with the aid of Darbo’s fixed point theorem
Meraa Arab   +5 more
doaj   +1 more source

Generalizations of Darbo’s fixed point-theorem and its application to the solvability of a nonlinear fractional differential equation [PDF]

open access: yes
This paper introduces novel fixed-point theorems for generalized Proinov contraction mappings utilizing the measure of noncompactness. These results significantly extend existing contraction principles and provide novel methods for analyzing nonlinear ...
Belhadj, Maha   +2 more
core   +2 more sources

Condensing Operators in Busemann Convex Metric Spaces With Applications to Hammerstein Integral Equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.
In this article, we introduce a new class of cyclic and noncyclic condensing operators that extend the notion of condensing mappings previously proposed by Gabeleh and Markin (M. Gabeleh and J. Markin, Optimum solutions for a system of differential equations via measure of noncompactness, Indagationes Mathematicae, 29(3) [2018], 895–906).
A. Pradhan   +4 more
wiley   +1 more source

Analytical Study of Variable‐Order Fractional Differential Equations With Initial and Terminal Antiperiodic Boundary Conditions

open access: yesJournal of Applied Mathematics, Volume 2025, Issue 1, 2025.
This study investigates the existence, uniqueness, and stability of solutions to Riemann–Liouville fractional differential equations with fractional variable‐order and antiperiodic boundary conditions. By employing the Banach fixed point theorem, we establish conditions for the uniqueness of solutions, while Schauder’s fixed point theorem is used to ...
Mohammed Said Souid   +6 more
wiley   +1 more source

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