3 papers
math.AG2023
Harder-Narasimhan games
Huayi Chen, Marion Jeannin
In this article, we study the notion of semi-stability and the Harder-Narasimhan filtration from a game-theoretic point of view. This allows us to provide a unified proof for the e…
math.RT2021
Analogues of Morozov Theorem in characteristic p>0
Marion Jeannin
Let G be a reductive group over an algebraically closed field of positive characteristic. In this article we show an analogue for Morozov theorem for characteristics that are separ…
math.RT2021
Integration questions in separably good characteristics
Marion Jeannin
Let G be a reductive group over an algebraically closed field k of separably good characteristic p>0 for G. Under these assumptions a Springer isomorphism from the reduced nilpoten…