2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/74532We study Hom 2-functors parameterizing 1-morphisms of algebraic stacks, and prove that it is representable by an algebraic stack under certain conditions, using Artin's criterion. As an application we study Picard 2-functors which parameterizes line bundles on algebraic stacks.21 pagesAlgebraic Geometry14A20;14B12;14K30text