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

作者：Bashir Ahmad, Hafed A. Saeed, Sotiris K. Ntouyas · 发表于：Fractal and Fractional · 年份：2025 · DOI：10.3390/fractalfract9040229 · 被引用次数：3 · 研究领域：Fractional Differential Equations Solutions、Nonlinear Differential Equations Analysis、Numerical methods for differential 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 to illustrate the results obtained.