Said Algarni received his M.Sc. in Mathematics from King Fahd University of Petroleum and Minerals (KFUPM), Saudi Arabia, in 2003, and his Ph.D. in Applied Mathematics from Carleton University, Canada, in 2012. He is currently an Assistant Professor of Mathematics at King Fahd University of Petroleum and Minerals (KFUPM). His research interests include combinatorics, theoretical computer science, numerical methods for ordinary and partial differential equations (ODEs/PDEs), numerical linear algebra, and Pad\'e approximation.

Othman Echi obtained his M.Sc. in Mathematics (DEA) from the University of Tunis-El Manar, Tunisia, in 1988. He earned a Doctorate of State from the same university in 1993 and later received his Habilitation (HDR) from the University of Aix-Marseille III, France, in 2001. From 1997 to 1999, he served as Vice President of the Tunisian Mathematical Society. In 2001, he was appointed as a Full Professor at the University of Tunis-El Manar. He is currently a Professor of Mathematical Sciences at King Fahd University of Petroleum and Minerals (KFUPM), Saudi Arabia. Additionally, he serves as an editor of the Arabian Journal of Mathematics. His research interests include category theory, commutative algebra, combinatorics, general topology, number theory, and theoretical computer science.