Charles Ouyang
Assistant Professor
Department of Mathematics
Washington University


Contact Information
Office: Cupples I 107
E-mail: ouyang (at) math (dot) wustl (dot) edu
Mailing address: Department of Mathematics, One Brookings Dr, St. Louis, MO, 63130.


I am currently an assistant professor at Washington University in St. Louis. Previously, I was an NSF postdoctoral fellow at the University of Massachusetts Amherst, where my mentor was Franz Pedit. I received my PhD from Rice University in May 2020 under the supervision of Michael Wolf.

Research Interests
(Higher) Teichmüller theory, Riemann surfaces, harmonic maps and minimal surfaces

Papers
High energy harmonic maps and degeneration of minimal surfaces, Geometry & Topology 27 (2023), no. 5, pp. 1691-1746. arXiv, Published version

Limits of Blaschke metrics (with A. Tamburelli), Duke Mathematical Journal 170 (2021), no. 8, pp. 1683-1722. arXiv, Published version

Length spectrum compactification of the SO(2,3) Hitchin component (with A. Tamburelli), Advances in Mathematics 420 (2023), pp. 1-37 arXiv, Published version

Boundary of the Gothen components (with A. Tamburelli), Topology and its Applications 326 (2023), pp. 1-11. arXiv, Published version

A closed ball compactification of a maximal component via cores of trees (with G. Martone and A. Tamburelli), Algebraic & Geometric Topology 24 (2024), pp. 3693-3717 arXiv, Published version

Higgs bundles and SYZ geometry (with S. Heller and F. Pedit), Journal of Differential Geometry 128 (2024), pp. 773-814 arXiv, Published version

Embedded special Legendrian surfaces in S^5 (with S. Heller and F. Pedit), arXiv

Metric degeneration of almost-complex curves in S^{2,4} (with P. Evans and A. Tamburelli), in preparation.

Teaching
Math 4160 - Complex Variables - Spring 2026 - WashU

Math 1520 - Calculus II (two sections) - Fall 2025 - WashU

Math 4111 - Introduction to Analysis - Spring 2025 - WashU

Math 309 - Matrix Algebra (two sections) - Fall 2024 - WashU

Math 370 - Introduction to Combinatorics - Spring 2024 - WashU

Math 429 - Linear Algebra - Fall 2023 - WashU

Math 132 - Calculus II - Spring 2022 - UMass

Math 132 - Calculus II - Fall 2021 - UMass

Math 233 - Multivariable Calculus - Spring 2021 - UMass

Math 131H - Honors Calculus I - Fall 2020 - UMass

Math 335 - Linear Algebra - Summer 2020 - Rice

Math 102 - Single Variable Calculus II - Fall 2017 - Rice

Math 101 - Single Variable Calculus I - Summer 2017 - Rice

Service
Co-organizer, "Geometry and Analysis of Minimal Surfaces", ICTS, Bangalore, August 18-29, 2025.

Co-organizer, "Minimal surfaces in symmetric spaces", BIRS-IMAG, Granada, May 21-26, 2023.

Co-organizer, "Special Session on Non-Abelian Hodge Theory and Minimal Surfaces", AMS Fall Eastern Sectional Meeting, October 1-2, 2022.

Co-organizer, "UMass Geometry and Analysis Seminar", Spring 2021-2023

Co-organizer, RTG Log Cabin Workshop "Geometric aspects of Higgs bundles" Sunriver, OR. May 11-18, 2019.

Some Useful Links 

WashU Math Department Home Page

UMass Math Department Home Page

Rice Math Department Home Page

GEAR - Geometric Structures and Representation Varieties

Princeton Math Department Home Page