2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/217325The Manin conjecture is established for a split singular del Pezzo surface of degree four, with singularity type A_4.29 pagesNumber TheoryAlgebraic Geometry11G35 (Primary) 14G05, 14G10 (Secondary)Manin's conjecture for a quartic del Pezzo surface with A_4 singularitytext