Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4596322 | Journal of Pure and Applied Algebra | 2014 | 16 Pages |
Abstract
We study a Seshadri constant at a general point on a rational surface whose anticanonical linear system contains a pencil. First, we describe a Seshadri constant of an ample line bundle on such a rational surface explicitly by the numerical data of the ample line bundle. Second, we classify log del Pezzo surfaces which are special in terms of the Seshadri constants of the anticanonical divisors when the anticanonical degree is between 4 and 9.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory