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E. M. Elsayed

Author Information

Full Name: E. M. Elsayed

Current Address: Department of Mathematics, Faculty of Sciences, King Abdulaziz University, P. O. Box 80203, Jeddah 21589, KSA.

Email: emmelsayed@yahoo.com

Open AccessArticle

Behavior and formula of the solutions of rational difference equations of order six

E. M. Elsayed, H. Malaikah and J. G. AL-Juaid*

Annals of Communications in Mathematics 2023,

6 (2),

72-85

DOI: https://doi.org/10.62072/acm.2023.060201

ABSTRACT.This paper is devoted to find the form of the solution of the following rational difference equation:\[x_{n+1}=\frac{x_{n-3}x_{n-5}}{x_{n-1}\left( \pm 1 \pm x_{n-3}x_{n-5} \right)},\]where the initial conditions \( x_{-5}, x_{-4}, x_{-3}, x_{-2}, x_{-1}, x_{0} \) are arbitrary non-zero real numbers. Also, we study the behavior of the solutions.
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Open AccessArticle

Existence Results for Fuzzy Differential Equations with ψ-Hilfer Fractional

D. Vivek, E. M. Elsayed*, K. Kanagarajan and R. Vivek

Annals of Communications in Mathematics 2022,

5 (1),

38-54

DOI: https://doi.org/10.62072/acm.2022.050104

AbstractThis manuscript concerns the fuzzy differential equation involving ψ-Hilfer type fractional derivative with nonlocal condition. By using successive approximation, we obtain the existence, uniqueness results of solution for ψ-Hilfer fuzzy differential equation. Further, nonlocal conditions are extended to the existence results. Furthermore, an application is shown to demonstrate the theoretical conclusions utility.
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Open AccessArticle

Boundary value problems for pantograph equations under generalized

D. Vivek*, E. M. Elsayed and K. Kanagarajan

Annals of Communications in Mathematics 2021,

4 (2),

149-154

DOI: https://doi.org/10.62072/acm.2021.040207

AbstractThe sufficient conditions are estabilished for the existence of solutions for a class of boundary value problems for pantograph equations involving the ψ-type fractional deerivative in Caputo sense.
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