Trees, quaternion algebras and modular curves

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/217252We study the action on the Bruhat-Tits tree of unit groups of maximal orders in certain quaternion algebras over $\mathbb{F}_q(T)$ and discuss applications to arithmetic geometry and group theory.14 pagesNumber TheoryAlgebraic GeometryGroup Theory11F06 (Primary); 11G18, 20E08 (Secondary)Trees, quaternion algebras and modular curvestext