2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/58641What kind of schemes are embeddable into good toric prevarieties? To shed some light on this question, we construct proper normal surfaces that are embeddable into neither simplicial toric prevarieties nor toric prevarieties of affine intersection.5 pages, minor changes, to appear in Proc. Amer. Math. SocAlgebraic Geometry14E25; 14M25On embeddings into toric prevarietiestext