Publication

On minimal epimorphic subgroups in simple algebraic groups of rank 2

Donna Testerman
2023
Journal Articles

Abstract

The category of linear algebraic groups admits non-surjective epimorphisms. For simple algebraic groups of rank 2 defined over algebraically closed fields, we show that the minimal dimension of a closed epimorphic subgroup is 3.

Official source

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

On minimal epimorphic subgroups in simple algebraic groups of rank 2

Chat with Graph Search

Finite torsors over strongly F-regular singularities

Jordan blocks of unipotent elements in some irreducible representations of classical groups in good characteristic

Irreducible representations of simple algebraic groups in which a unipotent element is represented by a matrix with a single non-trivial Jordan block