Mihai Postolache received his PhD degree in mathematics from Babes-Bolyai University, Cluj-Napoca, Romania. Currently, he is a professor at the Department of Mathematics and Computer Science at the University Politehnica of Bucharest and has been the head of the department since 2012. He is also a senior researcher at the Institute of Mathematical Statistics and Applied Mathematics of the Romanian Academy. He has published over one hundred research papers in selective journals, specialized in fixed point theory, nonlinear analysis, numerical algorithms, and nonlinear optimization. Professor Postolache serves as a member of several editorial boards of some international journals. He was awarded three times (in 2016, 2017, and 2020) by Clarivate Analytics as one of the highly cited researchers in the field of mathematics.