Guy Degla serves as researcher and lecturer at Institut de Mathematiques et de Sciences Physiques (IMSP) at University of Abomey-Calavi (UAC) since 2007. He holds a Ph.D. in Functional Analysis and Applications by International School for Advanced Studies (SISSA), Trieste, Italy and a Master in Mathematics by the University of Abomey-Calavi (UAC). He has been a visiting professor in several universities around the world (Italy, China, USA, Nigeria, …), he is a member of the American Association for Science and Technology (AASCIT) and a regular Associate of the Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy, since January 2009. His research interests include, but are not limited to, nonlinear functional analysis, geometric analysis and bifurcation theory.