1. Jacques-Louis Lions Laboratory (LJLL), Sorbonne University, Paris UMR 7598, France
2. Laboratory of Mathematics, Computer Sciences and Applications (LaMIA), Nazi BONI University, 01 BP 1091 Bobo Dsso 01, Bobo-Dioulasso, Burkina Faso
3. Laboratory of Mathematics, Computer Sciences and Applications (LaMIA), Gaoua University Center, Nazi BONI University, 01 BP 1091 Bobo Dsso 01, Bobo-Dioulasso, Burkina Faso