The Chow ring of a K3 surface
Abstract
Let X be a K3 surface. We show that the Chow group CH_0(X) of 0cycles contains a "fundamental class" c_X of degree 1 with remarkable properties: any product of divisors is proportional to this class, and so is the second Chern class c_2(X). This preprint supersedes the preprint math.AG/0109063 by the first author, where the latter property was conjectured.
 Publication:

arXiv Mathematics eprints
 Pub Date:
 November 2001
 arXiv:
 arXiv:math/0111146
 Bibcode:
 2001math.....11146B
 Keywords:

 Algebraic Geometry
 EPrint:
 10 pages, Plain TeX. Supersedes AG/0109063