Affiliation:
1. School of Mathematics and Statistics, Northwestern Polytechnical University, Xi’an 710129 China.
2. Corresponding author. School of Mathematics and Statistics, Central South University, Changsha 410083 China.
Funder
Young Talent Promotion Program of Xi’an Association for Science and Technology
National Natural Science Foundation of China
Natural Science Basic Research Program of Shaanxi
Natural Science Foundation of Hunan Province
Publisher
Society for Industrial & Applied Mathematics (SIAM)