Automorphisms of triality groups over local rings

Elena Bunina, Avi Berezovskiy, Deep Makadiya

Let $R$ be a nonzero commutative local ring with $2,3\in R^{\times }$, and let $ρ\in\Aut(R)$ satisfy $ρ^3=\id$. We classify abstract automorphisms of the elementary and full triality…