Automorphisms of elementary adjoint Chevalley groups of types $A_l, D_l, E_l$ over local rings with 1/2
Group Theory
2009-07-31 v2
Abstract
In the paper we prove that every automorphism of and elementary adjoint Chevalley group of types , or , over local commutative ring with 1/2 is a composition of a ring automorphism and conjugation by some matrix from the normalizer of the Chevalley group in ( is the adjoint representation space).
Cite
@article{arxiv.math/0702046,
title = {Automorphisms of elementary adjoint Chevalley groups of types $A_l, D_l, E_l$ over local rings with 1/2},
author = {E. I. Bunina},
journal= {arXiv preprint arXiv:math/0702046},
year = {2009}
}
Comments
19 pages