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arXiv math/0611412math.AG
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子簇排列的奇妙紧化

Wonderful compactification of an arrangement of subvarieties

Li Li

摘要:

我们定义了子簇排列的奇妙紧化。给定一个复非奇异代数簇$Y$和$Y$的子簇的某个集合$\mathcal{G}$,奇妙的紧化$Y_\mathcal{G}$可以通过$Y$沿着排列的子簇的一系列爆破来构造。这推广了Fulton-MacPherson组态空间和De Concini和Procesi给出的奇妙模型。我们给出了构造$Y_\mathcal{G}$的爆破阶的一个条件,使得每次爆破都是沿着一个非奇异中心的。

英文摘要:

We define the wonderful compactification of an arrangement of subvarieties. Given a complex nonsingular algebraic variety $Y$ and certain collection $\mathcal{G}$ of subvarieties of $Y$, the wonderful compactification $Y_\mathcal{G}$ can be constructed by a sequence of blow-ups of $Y$ along the subvarieties of the arrangement. This generalizes the Fulton-MacPherson configuration spaces and the wonderful models given by De Concini and Procesi. We give a condition on the order of blow-ups in the construction of $Y_\mathcal{G}$ such that each blow-up is along a nonsingular center.

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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