Mathematical method of neural network and its application. According to official website of Fudan University, he is a doctor of applied mathematics at Fudan University, studying the mathematical methods and applications of neural networks. Fudan University is a national key university directly under the Ministry of Education and the Central Government of People's Republic of China (PRC). It is a world-class university construction university (Class A) and a national "985 Project" and "2 1 1 Project" key construction university.