[1] China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou, Peoples R China
[2] China Univ Min & Technol, Sch Math, Xuzhou, Peoples R China
[3] King Abdulaziz Univ, Fac Sci, Dept Math, Jeddah, Saudi Arabia
[4] Kyung Hee Univ, Coll Sci, Dept Math, Seoul, South Korea
[5] Sohag Univ, Fac Sci, Math Dept, Sohag, Egypt
[6] Zewail City Sci & Technol, Ctr Photon & Smart Mat CPSM, Zewail, Egypt
[7] Quaid i Azam Univ, Dept Math, Islamabad, Pakistan