David I. Stewart

activity

20092022

most citedRigid orbits and sheets in reductive Lie algebras over fields of prime characteristic

19 citations · 63 across the 19 of their papers we have counts for

collaborators

Showing 2010Show all

2 papers · 1 filter

math.GR2010★ 2 cited

G-complete reducibility and the exceptional algebraic groups

David I. Stewart

Let $G = G (K)$ be a simple algebraic group defined over an algebraically closed field $K$ of characteristic $p > 0$ . A subgroup $X$ of $G$ is said to be $G$ -completely reducible if, wh…

math.GR2010

On unipotent algebraic G-groups and 1-cohomology

David I. Stewart

In this paper we consider non-abelian 1-cohomology for groups with coefficients in other groups. We prove versions of the `five lemma' arising from this situation. We go on to show…