The Chow ring of a K3 surface

Details The Chow ring of a K3 surface The Chow ring of a K3 surface

2001-11-13

arxiv.org/abs/math/0111146v1

Mathematics

Algebraic Geometry

10 pages, Plain TeX. Supersedes AG/0109063

Scientific paper

Let X be a K3 surface. We show that the Chow group CH_0(X) of 0-cycles
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.

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