| 作者单位： | LI Jing-wen（College of Information and Electrical Engineering, Lanzhou
Jiaotong University, Lanzhou, 730070, China）
YAO Bing（College of Mathematics and Information Science, Northwest
Normal University, Lanzhou, 730070, China）
CHENG Hui（College of Mathematics and Information Science, Northwest
Normal University, Lanzhou, 730070, China）
CHEN Xiang-en（College of Mathematics and Information Science, Northwest
Normal University, Lanzhou, 730070, China）
ZHANG Zhong-fu（College of Mathematics and Information Science, Northwest
Normal University, Lanzhou, 730070, China;Institute of Applied Mathematics, Lanzhou
Jiaotong University, Lanzhou, 730070, China） |
