2001/11/13 by Arnaud Beauville, Claire Voisin, Beauville, Arnaud +1 · 2 citations
Mathematics · #Algebraic Geometry (math.AG) #FOS: Mathematics #math.AG
paper · pdf · doi:10.48550/arxiv.math/0111146
10 pages, Plain TeX. Supersedes AG/0109063
arxiv created 2001/11/13 · arxiv updated 2009/11/30
Let X be a K3 surface. We show that the Chow group CH0(X) of 0-cycles contains a "fundamental class" cX of degree 1 with remarkable properties: any product of divisors is proportional to this class, and so is the second Chern class c2(X). This preprint supersedes the preprint math.AG/0109063 by the first author, where the latter property was conjectured.