Zhengning Hu

About Me

I am a Postdoctoral Research Associate at the University of Arizona since August 2023. I received my PhD from University of Missouri-Columbia in May 2023, under the supervision of Dan Edidin.

Research Interests

• Algebraic Geometry: Intersection theory on moduli of curves and Hurwitz spaces, Equivariant Intersection Theory
• Toric Geometry: Weak Fano toric varieties, non-projective toric varieties, Chow quotients of toric varieties

Recent Activities

• [July. 2025] 2025 Summer Research Institute in Algebraic Geometry
• [May. 2025] The 2025 AWM Research Symposium, University of Wisconsin-Madison

Preprints

• Classifying weak Fano toric varieties of Picard rank three, (joint with Rohan Joshi), 2025. In revision. GitHub repository

Publications

• Chow rings of Hurwitz spaces with marked ramification, (joint with Emily Clader, Hannah Larson, Amy Li and Rose Lopez), 2025. To appear in Annali della Scuola Normale Superiore di Pisa, Classe di Scienze. Journal
• The $K$-theory of the moduli stacks $\mathcal{M}_2$ and $\overline{\mathcal{M}}_2$, (joint with Dan Edidin). manuscripta math. 175, 1063–1084 (2024). Journal
• The integral Chow rings of the stacks of hyperelliptic Weierstrass points, (joint with Dan Edidin). Michigan Math. J. Advance Publication 1 - 23, 2025. Journal
• Chow classes of divisors on stacks of pointed hyperelliptic curves, (joint with Dan Edidin). Ann. Sc. Norm. Super. Pisa Cl. Sci. (5) 25 (2024), no.1, 217–240. Journal
• Several problems on moduli stacks of hyperelliptic curves, PhD thesis (2023).

Other writings

• A special version of excess intersection formula, 2025.
• A test family of hyperelliptic curves, 2022.
• Comprehensive Exam, 2022.

Teaching

• The University of Arizona (Instructor)

  • MATH 313 - Introduction to Linear Algebra (Spring 2026, Fall 2025, Spring 2025, Fall 2024, Spring 2024) Python Assignments
  • MATH 195M - Math and SDS Major Colloquium (Fall 2025)
  • MATH 396L - Wildcat Proofs Workshop (Fall 2024)
  • MATH 122B - First Semester Calculus (Fall 2023)

• University of Missouri-Columbia (Recitation TA)

  • MATH 4700 - Advanced Calculus (Spring 2023, Fall 2022, Spring 2022, Fall 2021, Fall 2020, Spring 2020) Notes
  • MATH 7900 - Multivariable Calculus (Spring 2023, Spring 2022, Spring 2021, Spring 2019) Notes
  • MATH 4720 - Abstract Algebra (Fall 2022)
  • MATH 1700 - Calculus II (Spring 2021, Spring 2020)
  • MATH 1500 - Calculus I (Fall 2019)
  • MATH 1160 - Precalculus (Spring 2019, Fall 2018)