A Study of a Nonlocal Coupled Integral Boundary Value Problem for Nonlinear Hilfer–Hadamard-Type Fractional Langevin Equations

We discuss the existence criteria and Ulam–Hyers stability for solutions to a nonlocal integral boundary value problem of nonlinear coupled Hilfer–Hadamard-type fractional Langevin equations. Our results rely on the Leray–Schauder alternative and Banach’s fixed point theorem. Examples are included t...

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Main Authors: Bashir Ahmad, Hafed A. Saeed, Sotiris K. Ntouyas
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Fractal and Fractional
Subjects:
Online Access:https://www.mdpi.com/2504-3110/9/4/229
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author Bashir Ahmad
Hafed A. Saeed
Sotiris K. Ntouyas
author_facet Bashir Ahmad
Hafed A. Saeed
Sotiris K. Ntouyas
author_sort Bashir Ahmad
collection DOAJ
description We discuss the existence criteria and Ulam–Hyers stability for solutions to a nonlocal integral boundary value problem of nonlinear coupled Hilfer–Hadamard-type fractional Langevin equations. Our results rely on the Leray–Schauder alternative and Banach’s fixed point theorem. Examples are included to illustrate the results obtained.
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spelling doaj-art-90dbb9d700ce4dacb0bbf8e11f898aae2025-08-20T02:18:11ZengMDPI AGFractal and Fractional2504-31102025-04-019422910.3390/fractalfract9040229A Study of a Nonlocal Coupled Integral Boundary Value Problem for Nonlinear Hilfer–Hadamard-Type Fractional Langevin EquationsBashir Ahmad0Hafed A. Saeed1Sotiris K. Ntouyas2Nonlinear Analysis and Applied Mathematics (NAAM)-Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi ArabiaNonlinear Analysis and Applied Mathematics (NAAM)-Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi ArabiaDepartment of Mathematics, University of Ioannina, 451 10 Ioannina, GreeceWe discuss the existence criteria and Ulam–Hyers stability for solutions to a nonlocal integral boundary value problem of nonlinear coupled Hilfer–Hadamard-type fractional Langevin equations. Our results rely on the Leray–Schauder alternative and Banach’s fixed point theorem. Examples are included to illustrate the results obtained.https://www.mdpi.com/2504-3110/9/4/229Hilfer–Hadamard fractional derivativeLangevin equationssystemnonlocal integral boundary conditionsexistencefixed point
spellingShingle Bashir Ahmad
Hafed A. Saeed
Sotiris K. Ntouyas
A Study of a Nonlocal Coupled Integral Boundary Value Problem for Nonlinear Hilfer–Hadamard-Type Fractional Langevin Equations
Fractal and Fractional
Hilfer–Hadamard fractional derivative
Langevin equations
system
nonlocal integral boundary conditions
existence
fixed point
title A Study of a Nonlocal Coupled Integral Boundary Value Problem for Nonlinear Hilfer–Hadamard-Type Fractional Langevin Equations
title_full A Study of a Nonlocal Coupled Integral Boundary Value Problem for Nonlinear Hilfer–Hadamard-Type Fractional Langevin Equations
title_fullStr A Study of a Nonlocal Coupled Integral Boundary Value Problem for Nonlinear Hilfer–Hadamard-Type Fractional Langevin Equations
title_full_unstemmed A Study of a Nonlocal Coupled Integral Boundary Value Problem for Nonlinear Hilfer–Hadamard-Type Fractional Langevin Equations
title_short A Study of a Nonlocal Coupled Integral Boundary Value Problem for Nonlinear Hilfer–Hadamard-Type Fractional Langevin Equations
title_sort study of a nonlocal coupled integral boundary value problem for nonlinear hilfer hadamard type fractional langevin equations
topic Hilfer–Hadamard fractional derivative
Langevin equations
system
nonlocal integral boundary conditions
existence
fixed point
url https://www.mdpi.com/2504-3110/9/4/229
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