国家自然科学基金(批准号:11731012和11571052);湖南省自然科学基金(批准号:2017JJ2271);中南财经政法大学中央高校基本科研业务费专项资金(批准号:2722019JCG067);Centre Henri Lebesgue,France(批准号:ANR-11-LABX-0020-01)资助项目
supported by the Scientific Research Funds of Huaqiao University(Grant No.15BS312);the Promotion Program for Young and Middle-Aged Teacher in Science and Technology Research of Huaqiao University(Grant No.ZQN-PY503);the National Natural Science Foundations of China(Grant Nos.11171278;11701194)