Aug 2025 – Present

National University of Singapore, Singapore

Master of Science in Mathematics

  • Selected coursework: Mathematical Logic, Commutative and Homological Algebra, Representation Theory.
Sep 2021 – Jun 2025

Xi'an Jiaotong University, China

Bachelor of Science in Mathematics and Applied Mathematics

Jun 2023 – Aug 2023

University of Wisconsin–Madison, US

Exchange program

  • Introduction to Cryptography and Introductory Combinatorics.
2025 – Present

Formalization of Nilpotent Orbit Closures

Co-authored a Lean 4 formalization of the combinatorial framework for nilpotent orbit closure relations in classical real Lie groups, following Đoković’s work.

Code: YoungDiagram

2026

A Formal Proof of the Sticky-Kakeya Theorem

Co-authored a Lean 4 formalization of Theorem 5.2 in Wang and Zahl’s work on sticky Kakeya sets, subsequently incorporated into a machine-checked proof of the full three-dimensional Kakeya conjecture. The formalization and its contributors were acknowledged in Guth, Wang, and Zahl’s streamlined proof.

Code: 3d-sticky-kakeya

2026

EdgeBench

Co-authored EdgeBench: Unveiling Scaling Laws of Learning from Real-World Environments. Contributed Lean-based evaluation infrastructure for formal mathematics, including partial-credit scoring and checks for axiom dependencies, modified theorem statements, and tampered definitions.

Paper: arXiv:2607.05155

May 2026 – Present

ByteDance, China

Intern, Formal Mathematics and Forward-Deployed Engineering

  • Contributed Lean/mathlib formalizations on spectral bounds, symplectic matrices, and character theory.
  • Completed a formalization of the large sieve and the classical Bombieri–Vinogradov theorem.
  • Developing long-horizon evaluation benchmarks.
Jan 2024 – Present

Peking University, China

Research Collaboration

  • Contributed to Lean/mathlib, including Stacks Project tags, the Jacobson–Noether theorem, and filtered homomorphisms and exactness of associated graded sequences (#22208, #22972).
  • Participated in Lean and AI for mathematics workshops, including Formalizing Class Field Theory (Oxford, 2025) and Metaprogramming in Lean 4 (Zhejiang University, 2026).
Mar 2025 – Nov 2025

Peking University & Ubiquant, China

Intern, AI for Mathematics

  • Developed mathematical solutions and Lean 4 formalizations in abstract algebra, category theory, and commutative algebra.
  • Helped build formalized datasets for automated reasoning and theorem proving.

Contact

You can reach me at hi@vertin.me or use the form below.

Yu-Misaka
GitHub
github.com
Hilbert-Yu
BiliBili
space.bilibili.com