Affiliation: | 1. School of Information and Software Engineering, University of Electronic Science and Technology of China, Chengdu, P.R. China;2. Department of Applied Mathematics, University of Waterloo, Waterloo, Canada;3. Department of Applied Mathematics, University of Waterloo, Waterloo, Canada;4. School of Mathematical Sciences, University of Electronic Science and Technology of China, Chengdu, P.R. China;5. School of Information Science and Engineering, Chengdu University, Chengdu, P.R. China |