On the uniqueness of a Gorenstein model of a del Pezzo fibration over ${\mathbb P}^1$

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/79542It is withdrawn because of errors.It is withdrawn because of errorsAlgebraic Geometry14E07; 14E05, 14E06On the uniqueness of a Gorenstein model of a del Pezzo fibration over ${\mathbb P}^1$text