WONDERFUL COMPACTIFICATIONS OF ARRANGEMENTS OF SUBVARIETIES

WONDERFUL COMPACTIFICATIONS OF ARRANGEMENTS OF SUBVARIETIES
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子品种排列的完美紧凑

DOI:
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发表时间:
2006
期刊:
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影响因子:
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通讯作者:
Li Li
Li Li
中科院分区:
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文献类型:
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作者:
Li Li

文献摘要

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我们定义了亚种排列的奇妙紧化。给定一个复非奇异代数变量Y和Y的子变量的一定集合G,可以用Y沿着排列的子变量的一系列膨胀来构造奇异紧化YG。这推广了Fulton-MacPherson位形空间以及De Concini和Procesi给出的美妙模型。给出了构造YG的爆破顺序的一个条件,使每次爆破沿一个非奇异中心进行。
We define the wonderful compactification of an arrangement of subvarieties. Given a complex nonsingular algebraic variety Y and certain collection G of subvarieties of Y , the wonderful compactification YG 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 YG such that each blow-up is along a nonsingular center.