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arXiv 1307.0102math.AG
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关于一致有理簇

On uniformly rational varieties

Fedor Bogomolov, Christian Böhning

摘要:

我们研究了一致有理簇的基本性质,即每个点都有一个同构于A^n的开子集的Zapriki开邻域的光滑簇。是否所有光滑的有理簇都是一致有理的,这是Gromov的一个公开问题.我们讨论了一些潜在的标准,可能会让一个人表明,他们在所有光滑有理簇类形成一个适当的子类。最后证明了节三次三重图的小代数分解和大代数分解是一致有理的。

英文摘要:

We investigate basic properties of uniformly rational varieties, i.e. those smooth varieties for which every point has a Zariski open neighborhood isomorphic to an open subset of A^n. It is an open question of Gromov whether all smooth rational varieties are uniformly rational. We discuss some potential criteria that might allow one to show that they form a proper subclass in the class of all smooth rational varieties. Finally we prove that small algebraic resolutions and big resolutions of nodal cubic threefolds are uniformly rational.

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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