Automorphisms of Chevalley groups of different types over commutative rings
Abstract
In this paper we prove that every automorphism of (elementary) adjoint Chevalley group with root system of rank >1 over a commutative ring (with 1/2 for the systems A2, F4, Bl, Cl; with 1/2 and 1/3 for the system G2) is standard, i.\,e., it is a composition of ring, inner, central and graph automorphisms.
0
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.