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math.AG2004
Bad loci of free linear systems
Tommaso de Fernex, Antonio Lanteri
The bad locus of a base-point free linear system L on a normal complex projective variety X is defined as the subset B(L) of X of points that are not contained in any irreducible a…
math.AG2003
Peculiar Loci of Ample and Spanned Line Bundles
Gian Mario Besana, Sandra Di Rocco, Antonio Lanteri
The bad locus and the rude locus of an ample and base point free linear system on a smooth complex projective variety are introduced and studied. The bad locus is defined as the se…