Affiliation: | Key Laboratory of High Performance Computing and Stochastic Information Processing (HPCSIP)(Ministry of Education of China), College of Mathematics and Computer Science, Hunan Normal University, Changsha 410081, China;2. Department of Mathematics, Wayne State University, Detroit, MI 48202, USA and Guangdong Province Key Laboratory of Computational Science, School of Mathematics and Computational Science, Sun Yat-sen University, Guangzhou 510275, China) |