T. Uchiyama

activity

20132020

most citedNon-separability and complete reducibility:

E_{n}

examples with an application to a question of Külshammer

4 citations · 5 across the 9 of their papers we have counts for

collaborators

Showing 2015Show all

3 papers · 1 filter

math.GR2015

Complete reducibility of subgroups of reductive algebraic groups over nonperfect fields 2

Tomohiro Uchiyama

Let k be a separably closed field. Let G be a reductive algebraic k-group. In this paper, we study Serre's notion of complete reducibility of subgroups of G over k. In particular,…

math.GR2015

Complete reducibility of subgroups of reductive algebraic groups over nonperfect fields 1

Tomohiro Uchiyama

Let $k$ be a nonperfect field of characteristic $2$ . Let $G$ be a $k$ -split simple algebraic group of type $E_{6}$ (or $G_{2}$ ) defined over $k$ . In this paper, we present the first ex…

math.GR2015★ 4 cited

Non-separability and complete reducibility: $E_{n}$ examples with an application to a question of Külshammer

Tomohiro Uchiyama

Let $G$ be a simple algebraic group of type $E_{n} (n = 6, 7, 8)$ defined over an algebraically closed field $k$ of characteristic $2$ . We present examples of triples of closed reductive…

Complete reducibility of subgroups of reductive algebraic groups over nonperfect fields 2

Complete reducibility of subgroups of reductive algebraic groups over nonperfect fields 1

Non-separability and complete reducibility: En​ examples with an application to a question of Külshammer

Non-separability and complete reducibility: $E_{n}$ examples with an application to a question of Külshammer