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arXiv 0903.2076math.AGmath.CO
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典型条带,I

The canonical strip, I

V. Golyshev

摘要:

我们引入了一个典型的带假设的Fano品种。我们证明了Fano簇的规范条假设意味着嵌入Calabi-Yau超曲面和一般型超曲面的Hilbert多项式的零点位于一条垂直线上。特别是,这扩展了维勒加斯的“多项式RH”相交的射影空间的情况下,CY和一般类型的超平面部分在格拉斯曼。本文对某些扇形多面体的Ehrhart多项式作了一些讨论。

英文摘要:

We introduce a canonical strip hypothesis for Fano varieties. We show that the canonical strip hypothesis for a Fano variety implies that the zeros of the Hilbert polynomial of embedded Calabi--Yau and general type hypersurfaces are located on a vertical line. This extends, in particular, Villegas's `polynomial RH' for intersections in projective spaces to the case of CY and general type hyperplane sections in Grassmannians. We state a few conjectures on the Ehrhart polynomials of certain fan polytopes.

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