Gaston M. N'Guérékata is a University Distinguished Professor and Associate Dean of the School of Computer, Mathematical, and Natural Sciences at Morgan State University in Baltimore, Maryland, USA. He authored over 240 publications including 10 books at the graduate/research level. His research interests include almost periodic and almost automorphic functions, abstract harmonic analysis, fractional differential equations and spectral theory of bounded functions. Dr. N'Guérékata has been a keynote speaker at several international conferences and is the recipient of several research awards in the USA and abroad.Bourama Toni is a Full Professor of Mathematics and Chair of the Department of Mathematics at Howard University, Washington, DC, USA. He is a Founder and Editor of the Springer-published STEAM-H series, with truly an interdisciplinary profile. Dr. Toni's research interests are primarily in Differential and Nonlinear Analysis and related topics to include Dynamical Systems, Non-Archimedean Analysis, Game Theory, Feedback Loops Analysis, and their applications to biosciences, behavioral sciences and naval engineering, with an excellent track-record of quality published research papers including contributed volumes with Springer.