Afif Ben Amar Author

Donal O'Regan is Professor in the School of Mathematics, Statistics, and Applied Mathematics at the National University of Ireland, Galway. His research interests include differential equations, nonlinear analysis, and fixed point theory. He is the author of several books, including An Introduction to Ordinary Differential Equations (with Ravi Agarwal), and Oscillation and Stability of Delay Models in Biology (with Ravi Agarwal and Samir Saker). His articles have appeared in journals such as Positivity, Boundary Value Problems, and Fixed Point Theory and Applications.
Afif Ben Amar is Professor in the Department of Mathematics, Faculty of Sciences, at the University Sfax, Tunisia. His research interests include operator theory, partial differential equations, integral equations, and applications of mathematics to the natural sciences. His work has been featured in the Arabian Journal of Mathematics, Afrika Mathematika, and Acta Applicandae Mathematicae.