The Fano variety of lines and rationality problem for a cubic hypersurface
The Fano variety of lines and rationality problem for a cubic hypersurface
复制标题
立方超曲面的 Fano 变线和合理性问题
DOI:
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
E. Shinder
中科院分区:
文献类型:
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作者:
Sergey Galkin;E. Shinder
We find a relation between a cubic hypersurface $Y$ and its Fano variety of lines $F(Y)$ in the Grothendieck ring of varieties. We prove that if the class of an affine line is not a zero-divisor in the Grothendieck ring of varieties, then Fano variety of lines on a smooth rational cubic fourfold is birational to a Hilbert scheme of two points on a K3 surface; in particular, general cubic fourfold is irrational.
影响因子:
2.5
作者:
N. Addington;Richard P. Thomas
通讯作者:
N. Addington;Richard P. Thomas