FUNDAMENTALNAYA I PRIKLADNAYA MATEMATIKA

(FUNDAMENTAL AND APPLIED MATHEMATICS)

2011/2012, VOLUME 17, NUMBER 7, PAGES 49-66

Automorphisms of Chevalley groups of type $G$₂ over local rings without $1/2$

E. I. Bunina
P. A. Veryovkin

Abstract

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In this paper, we prove that every automorphism of a Chevalley group of type $G$₂ over a commutative local ring without $1/2$ is the composition of a ring automorphism and a conjugation by some matrix.

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Last modified: May 24, 2013