2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/157309In this paper we study the local cohomology of all finitely generated bigraded modules over a standard bigraded polynomial ring which have only one nonvanishing local cohomology with respect to one of the irrelevant bigraded ideals.Commutative Algebra13C14, 13D45, 13D02, 16W50text