2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/126374We give a presentation for the stack of rational curves with at most 1 node as the quotient by GL(3) of an open set in a 6-dimensional irreducible representation. We then use equivariant intersection theory to calculate the integral Chow ring of this stack.14 pages, Latex2e, email for Dan Edidin is edidin@math.missouri.eduAlgebraic Geometry14C15; 14H10; 14A20The integral Chow ring of the stack of at most 1-nodal rational curvestext