Fractional-order evolutionary integral equations. - Ahmed M. A. El-Sayed (Appl. Math. Comput., 1999)

Bell polynomials of arbitrary (fractional) orders+. - A. M. A. El-Sayed; Saad Zagloul Rida (Appl. Math. Comput., 1999)

Laguerre polynomials of arbitrary (fractional) orders. - Ahmed M. A. El-Sayed (Appl. Math. Comput., 2000)

Set-valued integral equations of fractional-orders. - Ahmed M. A. El-Sayed; Ahmed Gamal Ibrahim (Appl. Math. Comput., 2001)

Fractional calculus and some intermediate physical processes. - Ahmed M. A. El-Sayed; Fatma M. Gaafar (Appl. Math. Comput., 2003)

On the functional integral equations of mixed type and integro-differential equations of fractional orders. - Wagdy Gomaa El-Sayed; Ahmed M. A. El-Sayed (Appl. Math. Comput., 2004)

A nonlinear operator functional equation of Volterra type. - Ahmed M. A. El-Sayed; Nagwa Sherif; Ibrahim Abou El-Farag (Appl. Math. Comput., 2004)

Fractional calculus and generalized Rodrigues formula. - Saad Zagloul Rida; Ahmed M. A. El-Sayed (Appl. Math. Comput., 2004)

Numerical methods for multi-term fractional (arbitrary) orders differential equations. - A. E. M. El-Mesiry; A. M. A. El-Sayed; H. A. A. El-Saka (Appl. Math. Comput., 2005)

On the fractional-order logistic equation. - A. M. A. El-Sayed; A. E. M. El-Mesiry; H. A. A. El-Saka (Appl. Math. Lett., 2007)

Monotonic positive solution of a nonlinear quadratic functional integral equation. - A. M. A. El-Sayed; Hind H. G. Hashem (Appl. Math. Comput., 2010)

Adomian's decomposition method for solving an intermediate fractional advection-dispersion equation. - A. M. A. El-Sayed; S. H. Behiry; W. E. Raslan (Comput. Math. Appl., 2010)

A homotopy perturbation technique for solving partial differential equations of fractional order in finite domains. - Ahmed M. A. El-Sayed; Ahmed Elsaid; I. L. El-Kalla; D. Hammad (Appl. Math. Comput., 2012)

A Reliable Treatment of Homotopy Perturbation Method for Solving the Nonlinear Klein-Gordon Equation of Arbitrary (Fractional) Orders. - Ahmed M. A. El-Sayed; Ahmed Elsaid; Doaa Hammad (J. Appl. Math., 2012)

Dynamical behavior, chaos control and synchronization of a memristor-based ADVP circuit. - A. M. A. El-Sayed; Ahmed Elsaid; H. M. Nour; Amr Elsonbaty (Commun. Nonlinear Sci. Numer. Simul., 2013)

Existence results for coupled systems of quadratic integral equations of fractional orders. - A. M. A. El-Sayed; Hind H. G. Hashem (Optim. Lett., 2013)

Circuit realization, bifurcations, chaos and hyperchaos in a new 4D system. - Ahmed M. A. El-Sayed; H. M. Nour; Ahmed Elsaid; A. E. Matouk; Amr Elsonbaty (Appl. Math. Comput., 2014)

Dynamical Analysis and Circuit Simulation of a New Fractional-Order Hyperchaotic System and Its Discretization. - A. M. A. El-Sayed; Amr Elsonbaty; A. A. Elsadany; A. E. Matouk (Int. J. Bifurc. Chaos, 2016)

Simulation of the approximate solutions of the time-fractional multi-term wave equations. - Entsar A. Abdel-Rehim; A. M. A. El-Sayed; A. S. Hashem (Comput. Math. Appl., 2017)

Weak Solutions of a Coupled System of Urysohn-Stieltjes Functional (Delayed) Integral Equations. - A. M. A. El-Sayed; M. M. A. Al-Fadel (Complex., 2018)

On the dynamics of the singularly perturbed Mackey-Glass equation. - A. M. A. El-Sayed; Sanaa Moussa Salman; N. A. Elabd (J. Comput. Appl. Math., 2018)

A Class of Nonlinear Boundary Value Problems for an Arbitrary Fractional-Order Differential Equation with the Riemann-Stieltjes Functional Integral and Infinite-Point Boundary Conditions. - Hari M. Srivastava; Ahmed M. A. El-Sayed; Fatma M. Gaafar (Symmetry, 2018)

Numerical simulation of blood flow in abdominal aortic aneurysms: Effects of blood shear-thinning and viscoelastic properties. - Ahmed M. A. El-Sayed; Amr Guaily; Ahmed Elsaid (Math. Comput. Simul., 2019)

Solvability of a coupled system of functional integro-differential equations with infinite point and Riemann-Stieltjes integral conditions. - A. M. A. El-Sayed; Reda Gamal Ahmed (Appl. Math. Comput., 2020)

On Ghost Attractor in Blinking Chaotic MVD Memristor-Based Circuit and its Application. - Rajagopalan Ramaswamy; A. M. A. El-Sayed; A. A. Elsadany; Amr Elsonbaty (IEEE Access, 2021)

Qualitative Study for a Delay Quadratic Functional Integro-Differential Equation of Arbitrary (Fractional) Orders. - Ahmed M. A. El-Sayed; Eman M. A. Hamdallah; Malak M. S. Ba-Ali (Symmetry, 2022)

New Aspects on the Solvability of a Multidimensional Functional Integral Equation with Multivalued Feedback Control. - Ahmed M. A. El-Sayed; Hind H. G. Hashem; Shorouk M. Al-Issa (Axioms, 2023)

Analysis of a Fractional-Order Quadratic Functional Integro-Differential Equation with Nonlocal Fractional-Order Integro-Differential Condition. - Ahmed M. A. El-Sayed; Antisar A. A. Alhamali; Eman M. A. Hamdallah (Axioms, 2023)

Dynamic analysis of the fractional-order logistic equation with two different delays. - H. A. A. El-Saka; D. El. A. El-Sherbeny; A. M. A. El-Sayed (Comput. Appl. Math., 2024)

Editorial for the Special Issue of "Fractional Differential and Fractional Integro-Differential Equations: Qualitative Theory, Numerical Simulations, and Symmetry Analysis". - Cemil Tunç; Jen-Chih Yao; Mouffak Benchohra; Ahmed M. A. El-Sayed (Symmetry, 2024)