Results 31 to 40 of about 1,558 (136)

A Data‐Driven Caputo Fractional‐Order Model for the Environmental Co‐Transmission Dynamics of Salmonella Typhi and Salmonella Paratyphi Causing Typhoid Fever

open access: yesAbstract and Applied Analysis, Volume 2026, Issue 1, 2026.
Typhoid fever remains a major public health concern in many low‐ and middle‐income countries, where the co‐circulation of Salmonella Typhi and Salmonella Paratyphi, coupled with environmental contamination, sustains disease transmission. This study develops a data‐driven Caputo fractional‐order mathematical model to investigate the environmental co ...
Thadei Damas Sagamiko   +2 more
wiley   +1 more source

On stability for nonlinear implicit fractional differential equations

open access: yesLe Matematiche, 2015
The purpose of this paper is to establish some  types of Ulam stability: Ulam-Hyers stability, generalized Ulam-Hyers stability, Ulam-Hyers-Rassias stability and generalized Ulam-Hyers-Rassias stability for a class of implicit fractional-order ...
Mouffak Benchohra, Jamal E. Lazreg
doaj  

Ulam’s stability for some linear conformable fractional differential equations

open access: yesAdvances in Difference Equations, 2020
In this paper, by introducing the concepts of Ulam type stability for ODEs into the equations involving conformable fractional derivative, we utilize the technique of conformable fractional Laplace transform to investigate the Ulam–Hyers and Ulam–Hyers ...
Sen Wang, Wei Jiang, Jiale Sheng, Rui Li
doaj   +1 more source

A Fractional‐Order Dengue Transmission Model Incorporating Density‐Dependent Mosquito Recruitment and Control Interventions

open access: yesAbstract and Applied Analysis, Volume 2026, Issue 1, 2026.
Dengue fever remains a major global public health challenge, driven by urbanization, climate change, and the complex dynamics of mosquito‐borne transmission. In this study, we propose a fractional‐order host‐vector compartmental model to capture the transmission dynamics of dengue, incorporating density‐dependent mosquito recruitment, personal ...
Thadei Damas Sagamiko   +1 more
wiley   +1 more source

Note on the solution of random differential equations via ψ-Hilfer fractional derivative

open access: yesAdvances in Difference Equations, 2018
This manuscript is devoted to an investigation of the existence, uniqueness and stability of random differential equations with ψ-Hilfer fractional derivative.
S. Harikrishnan   +3 more
doaj   +1 more source

Study of implicit delay fractional differential equations under anti-periodic boundary conditions

open access: yesAdvances in Difference Equations, 2020
This research work is related to studying a class of special type delay implicit fractional order differential equations under anti-periodic boundary conditions.
Arshad Ali   +2 more
doaj   +1 more source

Semi-Hyers–Ulam–Rassias Stability of the Convection Partial Differential Equation via Laplace Transform

open access: yesMathematics, 2021
In this paper, we study the semi-Hyers–Ulam–Rassias stability and the generalized semi-Hyers–Ulam–Rassias stability of some partial differential equations using Laplace transform. One of them is the convection partial differential equation.
Daniela Marian
doaj   +1 more source

A Data‐Driven Caputo Fractional‐Order Model for Typhoid Fever Transmission With Imperfect Vaccination and Environmental Contamination

open access: yesAbstract and Applied Analysis, Volume 2026, Issue 1, 2026.
Typhoid fever remains a major public health problem in settings with inadequate vaccination, unsafe water, poor sanitation, and environmental contamination. This study developed a data‐driven Caputo fractional‐order model incorporating imperfect vaccination, direct and environmental transmission, waning immunity, and pathogen contamination. Positivity,
Mlyashimbi Helikumi, Patricia J. Y. Wong
wiley   +1 more source

On a coupled system of pantograph problem with three sequential fractional derivatives by using positive contraction-type inequalities

open access: yesResults in Physics, 2022
This paper aims to establish conditions for the existence, uniqueness and Ulam–Hyers stability of solutions for a coupled system of pantograph problem with three sequential fractional derivatives.
Reny George   +4 more
doaj   +1 more source

On the Well‐Posedness and Stability Analysis of Nonlinear Fractional Integrodifferential Equations Subject to Integral Boundary Constraints

open access: yesAbstract and Applied Analysis, Volume 2026, Issue 1, 2026.
This article investigates the existence, uniqueness, and stability of solutions for a class of nonlinear fractional integrodifferential equations (NLFIDEs) with nonlocal boundary conditions in Banach algebras. By employing advanced analytical techniques within the Banach algebra framework, we rigorously establish existence and uniqueness results and ...
Yahia Awad   +4 more
wiley   +1 more source

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