**Khalide Jbilou**

is a professor of mathematics in the mathematics laboratory LMPA of the University Littoral Cote d'Opale (ULCO). He obtained his PhD in numerical analysis at the University of Lille and ˆ completed his habilitation thesis at ULCO in 1999. His research topics are scientific computing, matrix and tensor computation, ill-posed problems, extrapolation, radial basis functions for some PDEs, and model reduction methods, with applications to image processing, control theory and other domains. He has more than 110 publications in international journals, and he is a member of the editorial boards of five international journals. He also edited, as a managing gues<sup>t</sup> editor (or gues<sup>t</sup> editor), more than 10 special issues of high-quality international scientific journals. He has supervised about 16 PhD students and participated in many doctoral thesis and habilitation committees. He has also organized many international conferences on numerical analysis and scientific computing with applications. He is the leader of the approximation and matrix computation group at the applied mathematics laboratory at the University of Littoral Cote d'Opale in Calais. He is currently working ˆ on tensors with applications in deep learning and machine learning for large problems focusing on the development of model reduction procedures.

## **Marilena Mitrouli**

received her Ph.D. in Numerical Issues and Computational Problems in Algebraic Control Theory from the Department of Electrical Electronic and Information Engineering, City University, London, in 1991 (supervisor: Professor Nicos Karcanias). She has been a Professor in the Department of Mathematics, University of Athens, Athens, Greece, since 2018. Her research interests are numerical analysis, numerical linear algebra, the study of the growth problem in Hadamard and weighing matrices, the determinants of orthogonal matrices, rank, nullity and the null space of special matrices (Sylvester matrices, generalized Sylvester matrices, and block Toeplitz matrices), extrapolation methods for functions of matrices, matrix theory, canonical forms of matrices (Smith normal form and Jordan form), matrix pencils, and numerical methods for the computation of the greatest common divisor (GCD) and least common multiple (LCM) of polynomials.

She has published 97 papers in international journals, 21 in refereed conference proceedings and 16 in other conference proceedings. To date, there have been 817 citations of her research papers. She has given several lectures in Greek and foreign universities and institutions. She has participated in more than 50 international conferences. She has co-organized two international conferences and four international colloquiums. She has acted as a gues<sup>t</sup> editor for three international journals. She has also acted as a referee for various journals such as the following (as well as various conferences): *Mathematics of Computation*, *Journal of Computational and Applied Mathematics*, *Linear Algebra and Its Applications*, *Computers and Mathematics with Its Applications*, *Journal of Applied Statistics*, *IEEE Transactions on Automatic Control*, and *Kybernetica*.

She has taught several undergraduate courses including Numerical Analysis, Numerical Linear Algebra, Computer Graphics, Matrix Theory with Applications, and Informatics, as well as various postgraduate courses such as Numerical Linear Algebra, Computational Mathematics, Applied Linear Algebra, and Linear and Nonlinear Control Theory. She has written two books in Greek and one in Ukrainian. She has supervised four PhD and 23 MSc Students. She was also the external supervisor of one PhD student. She is the President of the ERASMUS Committee of the Mathematics Department of the University of Athens. She has also exchanged ERASMUS visits with other European Universities. She has organized three International Erasmus Days in her department.
