Academic Report of School of Mathematical Sciences [2026] No. 043

(Series Report for High-Level University Construction No. 1302)

Title： Cutoff for the inversion walk on tournaments and the state space of restricted inversions

Speaker：Jiangdong Ai, Associate Professor (Nankai University)

Time：10:00-11:00, May. 14, 2026

Location：Huixing Building Room 501

Abstract：

Speaker Profile：Jiangdong Ai is an associate professor and doctoral advisor at the School of Mathematical Sciences, Nankai University. His research focuses on the structure of directed graphs, including concepts such as the king and kernel of directed graphs, graph coloring, graph orientation, spectral extremes, and the Turán problem. He has published over 20 papers, with his research appearing in journals such as *SIAM J. Discrete Math* and *J. Graph Theory*. He has led several research projects, including the National Natural Science Foundation of China (NSFC) Young Scientist Fund Project (Category B), the Nankai University “100 Young Discipline Leaders” Program (2023), the NSFC Young Scientist Project (2024), and the Tianjin Natural Science Foundation Young Scientist Project (2024).

Faculty and students are welcome to attend!

Invited by: Zejun Huang

School of Mathematical Sciences

May 8, 2026