Co-authors and students

Erdős number: 3

• Paul Erdős — Marc Aron Berger — C. T. Kelley — Z.

Remark (initially made on Nov. 14, 2014 in Toulouse)

• Following the tradition of the mathematical community, my mathematical papers list the authors alphabetically.

• If I am so lucky as to have the privilege of collaborating with you, I would like to follow this tradition as well.

• See statements from the Chinese Mathematical Society and the American Mathematical Society for your reference:

  • 中国数学会关于数学学术评价的意见 (source)

  • AMS Statement on ‘‘The Culture of Research and Scholarship in Mathematics: Joint Research and Its Publication’’ (source)

Graduate students as chief supervisor

• Sept. 2025–present, Chengqing Lin, MPhil, Sun Yat-sen University

• Sept. 2024–present, Zao Jiang, MPhil, Sun Yat-sen University

• Sept. 2022–present, Cunxin Huang, PhD, The Hong Kong Polytechnic University, awardee of the Hong Kong PhD Fellowship Scheme 2022/23 (ref. PF21-56718, HKD 1400,800), co-supervised with Prof. Xiaojun Chen

• Sept. 2021–present, Haitian Li, PhD, The Hong Kong Polytechnic University, co-supervised with Prof. Xiaojun Chen

• Sept. 2019–Aug. 2022, Tom M. Ragonneau, PhD, The Hong Kong Polytechnic University, awardee of the Hong Kong PhD Fellowship Scheme 2019/20 (ref. PF18-24698, HKD 997,600), co-supervised with Prof. Xiaojun Chen, thesis: Model-Based Derivative-Free Optimization Methods and Software, working at Axians, France

• Remark: The Hong Kong PhD Fellowship (HKPFS) is a highly selective fellowship awarded by the Hong Kong government, selecting only 300 awardees per year worldwide across all disciplines.