Authors
Chen Wang
School of Mathematics and Statistics, Guizhou University,, Guiyang, China
Guidong Yu
School of Mathematics and Computation Sciences, Anqing Normal University,, Anqing, China
Wei Sun
School of Mathematics and Computation Sciences, Anqing Normal University,, Anqing, China
Jinde Cao
School of Mathematics, Southeast University, Nanjing,, Jiangsu, China