About me

I have been a PhD candidate in the Department of Mathematics at the Hong Kong University of Science and Technology (HKUST) since 2023, supervised by Prof. Shuoqing Deng and Prof. Yang Xiang. I received my MSc in Statistical Finance from Imperial College London in 2023 and my BSc in Statistics from Central South University in 2022.

Research interests

My current research focuses on graphon particle systems/Mean Field Games.

Publications

• D. Cui, S. Deng, Y. Xiang. Graphon Mean Field Game of mutual holding.
  arXiv preprint, arXiv:2606.28254, 2026.

• D. Cui, S. Deng, Y. Xiang. Convex ordering for graphon mean-field systems.
  arXiv preprint, arXiv:2608.19576, 2026.

Teaching assistant

• MATH4427 Loss Models and their Applications (25Fall, 26Fall)
• MATH4515 Statistical and Computational Methods in Financial Mathematics (25Fall, 26Fall)
• MATH4513 Life Contingencies Models and Insurance Risk (25Spr, 26Spr)
• MAFS5010 Stochastic Calculus (24Fall, 25Fall)
• MATH2121 Linear Algebra (24Fall)
• MATH2023 Multivariable Calculus (24Spr)