Global effective versions of the Briancon-Skoda-Huneke theorem

Artikel i vetenskaplig tidskrift, 2015

We prove global effective versions of the Briançon–Skoda–Huneke theorem. Our results extend, to singular varieties, a result of Hickel on the membership problem in polynomial ideals in Cn, and a related theorem of Ein and Lazarsfeld for smooth projective varieties. The proofs rely on known geometric estimates and new results on multivariable residue calculus.