Normal projective degenerations of rational and ruled surfaces.
Errata-Corrigé : «Contractions rationnelles des variétés algébriques»
Contractions rationnelles des variétés algébriques
A criterion for extending meromorphic functions.
Seshadri positive submanifolds of polarized manifolds
Let Y be a submanifold of dimension y of a polarized complex manifold (X, A) of dimension k ≥ 2, with 1 ≤ y ≤ k−1. We define and study two positivity conditions on Y in (X, A), called Seshadri A-bigness and (a stronger one) Seshadri A-ampleness. In this way we get a natural generalization of the theory initiated by Paoletti in [Paoletti R., Seshadri positive curves in a smooth projective 3-fold, Atti Accad. Naz. Lincei Cl. Sci. Fis. Mat. Natur. Rend. Lincei (9) Mat. Appl., 1996, 6(4), 259–274] (which...
Algebraic Contractions and Complete Intersections
Si studiano dilatazioni e contrazioni di varietà algebriche, con particolare riguardo al caso in cui queste siano delle intersezioni complete.
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