郑泽宇 | Zeyu Zheng

What you need is that your brain is open.

—— Erdős Pál

Hi! I am a Ph.D. candidate at Carnegie Mellon University.

Previously, I received a B.S. Computational Math from Fudan University, and a B.A. Mathematics with a minor in Computer Science from Rutgers University, both in 2023. I also spent two wonderful semesters at Budapest Semesters in Mathematics in the spring and summer of 2022.

My Erdős number is 2.

E-mail: zeyuzhen@andrew.cmu.edu

Google Scholar

 

Research Works

1. On the number of edges in saturated partial embeddings of maximal planar graphs
János Barát, Zoltán L. Blázsik, Balázs Keszegh, Zeyu Zheng
Under review
2. Sandpile prediction on undirected graphs
Ruinian Chang, Jingbang Chen, Ian Munro, Richard Peng, Qingyu Shi, Zeyu Zheng
Under review
3. Extremal planar graphs with no cycles of particular lengths
Ervin Győri, Xianzhi Wang, Zeyu Zheng
Under review
4. Four-regular graphs with extremal rigidity properties
Tibor Jordán, Robin Huang, Henry Simmons, Kaylee Weatherspoon, Zeyu Zheng
Discrete Mathematics 347 (2024), no. 4, 113833.
5. Common kings of a chain of cycles in a strong tournament
Logan Post, Zeyu Zheng
Graphs and Combinatorics 39 (2023), no. 4, 71.
6. On the Turán number of the linear 3-graph C13
Chaoliang Tang, Hehui Wu, Shengtong Zhang, Zeyu Zheng
The Electronic Journal of Combinatorics (2022), P3–46.

Teaching

• Spring 2025: TA for Multivariate Analysis at CMU
• Fall 2024: TA for Combinatorics at CMU, TA for Putnam Seminar at CMU
• Spring 2024: TA for Combinatorics at CMU
• Fall 2023: TA for Putnam Seminar at CMU
• Fall 2021: TA for Linear Algebra at Fudan University
Starting from 2019, I teach high school math competitions including AMC 10, AMC 12 and AIME. I also tutor college mathematics.
Link: Hybleland

Miscellaneous

• Bartending: My favorite cocktails are Baileys Milkshake, Gin Tonic and Pina Colada.
• Basketball: I was on the school basketball team during middle school and high school. Our 1908 class team won the second place in 2018 Shanghai High School SBS. Our high school team won the first prize in Xuhui District in 2018 High School Basketball League Shanghai. My favorite basketball players are Kobe Bryant and Manu Ginóbili.
• Cooking: Let him cook!
• MC: I work as a Master of Ceremonies. I was a member of Fudan Host Team. I hosted RU Voice 2022 and CMU CSSA The Voice 2024.