[1] Zhejiang Normal Univ, Dept Math, Jinhua 321004, Zhejiang, Peoples R China
[2] King Abdulaziz Univ, Dept Math, Jeddah, Saudi Arabia
[3] Univ S Florida, Dept Math & Stat, Tampa, FL 33620 USA
[4] Shandong Univ Sci & Technol, Coll Math & Syst Sci, Qingdao 266590, Shandong, Peoples R China
[5] North West Univ, Int Inst Symmetry Anal & Math Modelling, Dept Math Sci, Mafikeng Campus, ZA-2735 Mmabatho, South Africa
[6] Benha Univ, Dept Math, Benha Fac Engn, Banha, Egypt
[7] Majmaah Univ, Coll Sci & Human Studies Hotat Sudair, Dept Math, Majmaah 11952, Saudi Arabia