[1] Xiangtan Univ, Sch Math & Computat Sci, Hunan Key Lab Computat & Simulat Sci & Engn, Key Lab Intelligent Comp & Informat Proc Minist Ed, Xiangtan, Hunan, Peoples R China
[2] Xiangtan Univ, Natl Ctr Appl Math Hunan, Sch Math & Computat Sci, Hunan Int Sci & Technol Innovat Cooperat Base Comp, Xiangtan, Hunan, Peoples R China
[3] Xiangtan Univ, Natl Ctr Appl Math Hunan, Sch Math & Computat Sci, Hunan Int Sci & Technol Innovat Cooperat Base Comp, Xiangtan 411105, Hunan, Peoples R China