[Ibrahim, Muhammad] Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China.
[Saeed, Tareq] King Abdulaziz Univ, Fac Sci, Dept Math, Nonlinear Anal & Appl Math NAAM Res Grp, POB 80203, Jeddah 21589, Saudi Arabia.
[Chu, Yu-Ming] Huzhou Univ, Dept Math, Huzhou 313000, Peoples R China.
[Chu, Yu-Ming] Changsha Univ Sci & Technol, Hunan Prov Key Lab Math Modeling & Anal Engn, Changsha 410114, Peoples R China.
[Ali, Hafiz Muhammad] King Fand Univ Petr & Minerals, Mech Engn Dept, Dhahran 31261, Saudi Arabia.