I am a postdoctoral fellow in the Department of Applied Mathematics at The Hong Kong Polytechnic University, under the supervision of Prof. Xiang Yu.

I obtained my Ph.D. in Statistics from the Department of Mathematical Sciences, Tsinghua University in June 2026, under the supervision of Prof. Zongxia Liang.

For further information, please see my CV page (updated 2026-07).

Feel free to contact me directly if you have any questions about my research. Collaborations on related topics are warmly welcomed!

Research Interests

• Mean Field Games
• Stochastic Control and Optimization
• Mathematical Finance
• Reinforcement Learning

Contact

Address: Department of Applied Mathematics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.

Email: keyu1.zhang@polyu.edu.hk, zhangkeyu2000@outlook.com

Tel: (+86) 188-6494-6836 / (+852) 53090564