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arXiv math/0011217math.AG
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Hilbert方案中的复曲面簇

Toric Varieties in Hilbert Schemes

Heather Russell

摘要:

对于任意域K,设I是环K[[x,y]]中的理想,可表示为理想对(x,y^4)和(x,y)或理想对(x,y^3)和(x^2,y)中的多项式。设G是K[[x,y]]的自同构群,将理想(x,y^2)发送给自身。则I的G轨道的闭包的正规化是环面簇。我们使用的Hilbert计划和环面品种的性质的相互作用来研究这些空间。

英文摘要:

For an arbitrary field K, let I be an ideal in the ring K[[x,y]] expressible as a polynomial in either the pair of ideals (x, y^4) and (x,y) or the pair (x,y^3) and (x^2, y). Let G be the group of automorphisms of K[[x,y]] sending the ideal (x,y^2) to itself. Then the normalization of the closure of the G orbit of I is a toric variety. We use the interplay of the properties of Hilbert schemes and toric varieties to study these spaces.

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。

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