[1] Wuhan Univ Technol, Sch Automat, Wuhan, Peoples R China
[2] Huzhou Univ, Dept Math, Huzhou, Peoples R China
[3] Changsha Univ Sci & Technol, Hunan Prov Key Lab Math Modeling & Anal Engn, Changsha, Peoples R China
[4] COMSATS Univ Islamabad, Dept Math, Lahore, Pakistan
[5] Yuzuncu Yil Univ, Fac Educ, Van, Turkey