High-Dimensional Expanders from Chevalley Groups

Ryan O'Donnell, Kevin Pratt

Let $\Phi$ be an irreducible root system (other than $G_2$) of rank at least $2$, let $\mathbb{F}$ be a finite field with $p=\mathrm{char}\mathbb{F}>3$, and let $\mathrm{G}…