Hao Chang

collaborators

4 papers

math.RT2016

Finite group schemes of $p$ -rank $\leq 1$

Hao Chang, Rolf Farnsteiner

Let $G$ be a finite group scheme over an algebraically closed field $k$ of characteristic $char (k) = p \geq 3$ . In generalization of the familiar notion from the modul…

math.RA2016

A note on the rank of a restricted Lie algebra

Hao Chang

In this short note, we study the rank of a restricted Lie algebra $(g, [p])$ and give some applications, which concerns the dimensions of non-trivial irreducible modules.…

math.RA2016

Toral stabilizers of restricted Lie algebras

Hao Chang

This paper investigates the toral stabilizer of a finite-dimensional restricted Lie algebra $(g, [p])$ , defined over an algebraically closed field $k$ of positive charact…

math.RA2014

Adjoint quotient maps for restricted Lie algebras Wn and Sn

Hao Chang

We give an explicit description of adjoint quotient maps for Jacobson-Witt algebra Wn and special algebra Sn. An analogue of Kostant's differential criterion of regularity is given…

Finite group schemes of p-rank ≤1

A note on the rank of a restricted Lie algebra

Toral stabilizers of restricted Lie algebras

Adjoint quotient maps for restricted Lie algebras Wn and Sn

Finite group schemes of $p$ -rank $\leq 1$