YANG YANG1,+, SHU-LVEYANG2, FENG-HE WANG3 AND JIN SUN4
1College of Mathematics and Computer Science
2College of Physics and Information Engineering
Fuzhou University
Fuzhou, 350108 China
3Department of Mathematics and Physics
Shandong Jianzhu University
Jinan, 250101 China
4Department of Application Mathematics
Xi’an University of Technology
Xi’an, 710048 China
+E-mail: yang.yang.research@gmail.com