arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1404.0171math.AG
收藏

K3曲面的维数与幂环

Finite-dimensionality and cycles on powers of K3 surfaces

Qizheng Yin

摘要:

对于一个K3曲面S,考虑CH(S^n)的子环由除数类和对角类生成(具有Q-系数)。Voisin证明了圈类映射对这个环的限制是单射的。我们证明了Voisin猜想等价于S在Kimura-O 'Sullivan意义下的有限维性。因此,我们得到的例子S的希尔伯特计划满足Beauville-Voisin猜想。

英文摘要:

For a K3 surface S, consider the subring of CH(S^n) generated by divisor and diagonal classes (with Q-coefficients). Voisin conjectures that the restriction of the cycle class map to this ring is injective. We prove that Voisin's conjecture is equivalent to the finite-dimensionality of S in the sense of Kimura-O'Sullivan. As a consequence, we obtain examples of S whose Hilbert schemes satisfy the Beauville-Voisin conjecture.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑