Authors
Tao Jiang
College of Economics and Management Shandong University of Science and Technology, 266590,, Qingdao, China
Sherif I. Ammar
Mathematics Department, College of Science Taibah University, 414111,, Medina, Saudi Arabia
Mathematics Department, Faculty of Science Menoufia University, 32511,, Menoufia, Egypt
Baoxian Chang
School of Physical and Mathematical Sciences Nanjing Tech University, 211800,, Nanjing, China
Liwei Liu
School of Science Nanjing University of Science and Technology, 210094,, Nanjing, China