I am Associate Professor at UC Berkeley. I am interested in number theory and its connections to algebraic geometry, representation theory, and algebraic topology.
I am also working on Machine Learning, currently as a Research Scientist at Google DeepMind. In this capacity, I built a research agent codenamed Aletheia. Files associated to this project can be found here.
My CV is available.
I am co-PI of the Berkeley RTG on Numbers, Symmetry, and Geometry (along with David Nadler, Martin Olsson, Sug Woo Shin, and Yunqing Tang).
E-mail: fengt[aat]berkeley[doot]edu.
News: (updated Aug, 2026)
- Uploaded a new paper (with Zhiwei Yun and Wei Zhang), Modularity of higher theta series III: Proof of the Modularity Conjecture.
Short Vita:
- Associate Professor, UC Berkeley 2022-Present
- Viterbi Postdoctoral Fellow, MSRI/SLMath 2023
- C L E Moore Instructor and NSF Postdoctoral Fellow, MIT 2019-2022 (Sponsor: Wei Zhang)
- Member, Institute for Advanced Study 2020-2021
- Ph.D., Stanford University 2019 (Advisor: Akshay Venkatesh)
- MASt, Cambridge University 2014 (Part III)
- A.B.+A.M., Harvard University 2013 (Mathematics concentration, Computer Science secondary)