[1] Peking Univ, Sch Math Sci, Beijing 100871, Peoples R China
[2] Natl Univ Modern Languages NUML, Dept Math, Islamabad 44000, Pakistan
[3] Prince Sattam Bin Abdulaziz Univ, Coll Arts & Sci, Dept Math, Wadi Aldawaser 11991, Saudi Arabia
[4] Majmaah Univ, Coll Sci Al Zulfi, Dept Math, Al Majmaah 11952, Saudi Arabia
[5] Majmaah Univ, Coll Sci Al Zulfi, Dept Math, Al Majmaah 11952, Saudi Arabia
[6] King Khalid Univ, Fac Sci, Dept Phys, Lab Nanosmart Mat Sci & Technol LNSMST, POB 9004, Abha, Saudi Arabia
[7] King Khalid Univ, Res Ctr Adv Mat Sci RCAMS, POB 9004, Abha 61413, Saudi Arabia
[8] Ain Shams Univ, Fac Educ, Dept Phys, Met Lab 1,Nanosci Lab Environm & Biomed Applicat, Cairo 11757, Egypt
[9] Taif Univ, Coll Engn, Dept Civil Engn, POB 11099, At Taif 21944, Saudi Arabia