This study investigates the existence and Ulam–Hyers stability (UHS) results in the context
of mixed Hadamard and Riemann–Liouville Fractional Stochastic Differential Equations …

In this paper, we study the existence and uniqueness of Hadamard Itô-Doob Stochastic
Fractional Order Systems (HIDSFOS) using the Picard iteration method. Different from the …

In this paper, we investigate the existence and uniqueness of fractional differential equations
(FDEs) by using the fixed-point theory (FPT). We discuss also the Ulam–Hyers–Rassias …

The synchronization problem for impulsive fractional-order Cohen–Grossberg neural
networks with generalized proportional Caputo fractional derivatives with changeable lower …

In this article, we discuss the existence and uniqueness of proportional Itô–Doob stochastic
fractional order systems (PIDSFOS) by using the Picard iteration method. The paper …

This article aims to use various fixed-point techniques to study the stability issue of the
impulsive Volterra integral equation in the sense of Ulam–Hyers (sometimes known as …

This paper explores Proportional Neutral Fractional Stochastic Differential Equations
(PNFSDEs), emphasizing their existence, uniqueness, and Hyers-Ulam Stability (HUS). The …

By constructing a coupling with unbounded time‐dependent drift, a lower bound estimate of
dimension‐free Harnack inequality with power is obtained for a large class of stochastic …