About Me

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About Me


  • avatar
    Name
    Gary Hu

I’m an undergraduate student studying pure math. So far, I've been mostly interested in:

  • Applications of representation theory and algebraic geometry in mathematical physics

I am also a 200+ WPM competitive speedtyper.

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Table of Contents

Research Works In Progress

Since October 2024, I have been advised by Rongwei Yang (SUNY Albany) on several projects. This work is generously supported by Innovation Funding from both the Minerva Center for High-Impact Practices and SUNY System Administration. Drafts are available upon request.

  • Spectral Equivalence of Solvable Lie Algebras with Nilradical I: General and Heisenberg Cases
  • Spectral Equivalence of Solvable Lie Algebras with Nilradical II: Borel and (Quasi)Filiform Cases

Travel Schedule

Currently, I have no upcoming travel plans.

Past Travel Schedule

Reverse chronological order.

Date Program Location Blog
8/18/25–8/22/25 Rutgers Symplectic Summer School New Brunswick, NJ
8/4/25–8/8/25 BIREP Summer School on Finite Tensor Categories Willebadessen, Germany
7/6/25–7/26/25 IAS/PCMI USS Park City, Utah
6/2/25–6/6/25 Notre Dame Thematic Program Notre Dame, Indiana blog
1/8/25–1/11/25 Joint Math Meetings Seattle, WA blog
4/5/25 Hudson River Undergraduate Math Conference Schenectady, NY
8/19/24–8/23/24 Rutgers Symplectic Summer School New Brunswick, NJ
6/10/24–6/14/24 Rutgers Current Trends in Mathematics: Beyond the Freshmen Horizons New Brunswick, NJ blog
7/2/23–8/6/23 Canada/USA Mathcamp Burlington, VT blog
7/3/22–8/7/22 Canada/USA Mathcamp Portland, ME blog

Expository Work

Expository Writing

Title Year PDF Pages
GG^\infty-DeWitt Supermanifolds 24 pdf 15
Fiebig’s Correspondence Between Soergel Bimodules and Braden-MacPherson Sheaves 25 pdf 50
Companion to Dan Freed's Quantum Theory From A Geometric Viewpoint 25 pdf 124

Expository Talks

Title School Event Year Slides
Introduction to Module Categories Bielefeld Summer School on Finite Tensor Categories 25 pdf
Introduction to Superalgebra Williams MATH497 25 pdf
A Geometric Viewpoint on Spectral Theorems Williams MATH497 25 pdf
GG^\infty-DeWitt Supermanifolds Williams MATH426 24 pdf
Continuous, Nowhere Differentiable Functions N/A N/A 23 pdf

Various Notes

Workshops

Disclaimer: None of these notes have been endorsed by the original lecturer. All of the course content is owned by their respective institutions and their professors, while mistakes should be attributed solely to me. For clarity, I've replaced some workshop titles with their core topics, as their original names typically did not reflect the content or could be significantly shortened.

Institution Title Year PDF Pages
Rutgers
Topics in Symplectic Geometry: Lagrangian Floer Theories

Abstract: From August 18 to August 22, Rutgers University ran a summer school on symplectic geometry that aimed to provide graduate students and advanced undergraduate students tutorials in various advanced topics in symplectic geometry and introductions to recent developments. This year we focus on, but are not restricted to, theories and applications of Lagrangian Floer theories, including Fukaya categories, Floer theory in low-dimensional topology, contact geometry, and Hamiltonian dynamics etc.

Last update: August 24, 2025

25 pdf 58
Harvard / Bonn
QFT and Topological Phases

Abstract: Quantum Field Theory (QFT) and Quantum Statistical Mechanics are central to high energy physics and condensed matter physics; they also raise deep questions in mathematics. The application of operator algebras to these areas of physics is well-known. Recent developments indicate that to understand some aspects QFT properly a further ingredient is needed: homotopy theory and infinity-categories. One such development is the recognition that symmetry in a QFT is better described by a homotopy type rather than a group (so-called generalized symmetries). Another one is the work of Lurie and others on extended Topological Field Theory (TFT) and the Baez-Dolan cobordism hypothesis. Finally, there is a conjecture of Kitaev that invertible phases of matter are classified by homotopy groups of an Omega-spectrum.

This workshop will bring together researchers and students approaching this physics using different mathematical techniques: operator algebras, homotopy theory, higher category theory, etc. The goal is to catalyze new interactions between different communities. At the workshop recent developments will be reviewed and hopefully progress can be made on two outstanding problems: the Kitaev conjecture as well as the long-standing goal of finding a proper mathematical formulation for QFT.

Last update: July 27, 2025

25 pdf 79
Notre Dame
Discrete Groups in Topology and Algebraic Geometry

Abstract: From June 2nd to June 6th, The Center of Mathematics at Notre Dame ran a Thematic Program in Discrete Groups in Topology and Algebraic Geometry. I participated in the undergraduate week, which explored the theme of discrete groups in topology and algebraic geometry through the lens of elliptic curves, their moduli, and connections with basic principles of geometric group theory.

Last update: June 15, 2025

25 pdf 95
BIMSA
Integrable Systems and Algebraic Geometry

Abstract: From June 24th to July 5th, the Beijing Institute of Mathematical Sciences and Applications ran a workshop on mathematics and mathematical physics.

From the website:

This series of summer workshops is organized by the Beijing Institute of Mathematical Sciences and Applications (BIMSA). It aims at introducing young researchers to some of the active research areas in Mathematics and Mathematical Physics via a series of short lecture courses taught by some of the world's best mathematicians, combined with research talks given by world-renowned experts in the field. The theme for the inaugural workshop in Summer 2024 is Integrable Systems and Algebraic Geometry.

Last update: July 6, 2024

24 pdf 401
Rutgers
Topics in Symplectic Geometry: Foundational Aspects

Abstract: From August 19 to August 23, Rutgers University ran a summer school on symplectic geometry that aimed to provide graduate students and advanced undergraduate students tutorials in various advanced topics in symplectic geometry and introductions to recent developments. This year was focused on, but was not restricted to, the foundational aspects, including the theory of global Kuranishi charts, integer-valued curve-counting invariants, Hamiltonian dynamics, and contact topology.

Last update: August 26, 2024

24 pdf 63
ACNS
Applied Cryptography and Network Security

Abstract: ACNS is an annual conference focusing on current developments that advance the areas of applied cryptography, cyber security (including network and computer security) and privacy. The goal is to represent both academic research works as well as developments in industrial and technical frontiers. Submissions may focus on the modelling, design, analysis (including security proofs and attacks), development (e.g. implementations), deployment (e.g. system integration), and maintenance (e.g. performance measurements, usability studies) of algorithms, protocols, standards, implementations, technologies devices, systems standing in relation with applied cryptography, cyber security and privacy, while advancing or bringing new insights to the state of the art.

From June 19th to June 22nd, the 21st ACNS was held in Kyoto, Japan.

Last update: July 6, 2023

23 pdf 29

Course Notes

During high school, I spent a lot of my free time studying mathematics through courses offered by institutions I wasn't affiliated with, and took detailed notes as I learned. All of the courses are publicly available online, so I believe I shouldn't be running into any copyright issues here. Please let me know if you want something taken down, and I will gladly do it for you.

Disclaimer: Many of these notes are being transferred from my blog to PDF format to take up less space, so some formatting may not display correctly. As usual, all of the course content is owned by their respective institutions and their professors, while mistakes should be attributed to me. Finally, since I wrote these notes as a high schooler, there are likely plenty of basic errors.

Title Institution PDF Pages
Affine Lie Algebras and Affine Quantum Groups BIMSA PDF 62
Painlevé Equations BIMSA PDF 42
Commutative Algebra and Algebraic Geometry Harvard PDF 131
Studies in Algebra and Analysis Harvard PDF 306
Introduction to Lie Algebras HKUST PDF 78
Foundations of Cryptography MIT PDF 24
Susskind's Quantum Mechanics Stanford Blog 26

Notes from Williams College

I am only willing to share these notes with other students at Williams. If you are a Williams student and would like a copy, please email me at gh7@williams.edu

Course Name Semester Pages
MATH 326: Differential Geometry Fall 2024 57
MATH 383: Complex Analysis Fall 2025
MATH 411: Commutative Algebra Spring 2025 77
MATH 419: Algebraic Number Theory Fall 2025
MATH 426: Differential Topology Fall 2024 71
STAT 342: Stochastic Processes Spring 2025 93

Programming

Whirlwind (code + blog post)

A highly customizable blazing-fast workstation for scribing faster in-class LaTeX notes.

Relevant Coursework

Here are all of the relevant courses I have taken at Williams.

Key: † denotes course taken on auditor status

Fall 2024
  • Differential Topology (MATH 426)
  • Local Fields and Root Systems (MATH 497)
  • Probability (STAT 341)
Spring 2025
  • Commutative Algebra (MATH 411)
  • Geometry and Quantum Theory (MATH 497)
  • Stochastic Processes (STAT 342)
  • Algorithmic Game Theory (CSCI 357) †

Directed Reading

This isn't official coursework, but I've done a couple directed reading projects dating back to high school.

  • Soergel Bimodules with Grant Barkley (Harvard) in Spring 2025
  • Dynamical Systems with Anastassiya Semenova (UW) in Spring 2024
  • Quantum Groups with Kevin Chang (Columbia) and Raj Gandhi (Cornell) in Summer 2023
  • Quiver Representations with Kayla Wright (UMN Twin Cities) in Summer 2022.

Gary Hu
© 2025