1. According to Sohu. Com, database of mathematical journals: In the database of journal papers in the field of mathematics, you can find the academic papers and research results published by Mr. Hu Shigeng.
2. Academic conferences and lectures: Mr. Hu Shigeng has made many speeches and reports at mathematical academic conferences and lectures. The materials of these conferences and lectures can be obtained from relevant websites or organizations.
3. Mathematical academia and websites: Many mathematical academia and websites will introduce and report influential mathematicians and research results. By paying attention to these websites and communities, we can understand Mr. Hu Shigeng's research achievements and contributions in the field of functional analysis.