Harder-Narasimhan theory: an order theoretical approach

Speaker：Huayi Chen (Westlake University)

Time：2026-4-28 9:30

Location：Conference Room C802 at Administration Building at Haiyun Campus

Abstract:

In this talk, I will explain a joint work with Marion Jeannin, where we establish a Harder-Narasimhan theory in the setting of bounded lattices. The existence and uniqueness of Harder-Narasimhan filtration is proved in this general setting, which allows to unify several similar constructions in algebraic geometry, arithmetic geometry, and many other mathematical domains.