Authors
Zouhair Diab
Department of Mathematics and Computer Science, Larbi Tebessi University, Tebessa, Algeria
Juan L. G. Guirao
Departamento de Matemática Aplicada y Estadística, Universidad Politécnica de Cartagena, Hospital de Marina, Spain
Amar Makhlouf
Department of Mathematics; Faculty of Sciences, University UBM of Annaba, Algeria
Huatao Chen
Center for Dynamics and Intelligen Control Research, School of Mathematics and Statistics, Shandong University of Technology, ZiBo, China