1. Xi’an Jiaotong University, School of Mathematics and Statistics, Xi’an, Shaanxi 710049, China
2. Xi’an International Academy for Mathematics and Mathematical Technology, Center for Optimization Techniques and Quantitative Finance, Xi’an, Shaanxi 710049, China
3. Xi’an Jiaotong University, School of Nuclear Science and Technology, Xi’an, Shaanxi 710049, China