Author(s): |
Jie-xia Yang, Guanzhou Univesity, Mathematics & infornation Science College, Guangzhou, China rong-xi Chen, Guanzhou Univesity, Mathematics & infornation Science College, Guangzhou, China Guo-dong He, Guanzhou Univesity, Mathematics & infornation Science College, Guangzhou, China Yu-guang Chen, Guanzhou Univesity, Mathematics & infornation Science College, Guangzhou, China |