论文标题

较高的纳什爆炸是主要特征中正常旋转品种

Higher Nash blowups of normal toric varieties in prime characteristic

论文作者

Duarte, Daniel, Núñez-Betancourt, Luis

论文摘要

我们证明,在且仅当它是非singular时,在阳性特征领域定义的正常旋转型品种的较高nash爆炸是同构的。我们还扩展了R. Toh-Yama的结果,该结果表明,较高的NASH爆炸不会给出$ a_3 $ singularity的一步分辨率。这些结果以前仅在特征零中已知。

We prove that the higher Nash blowup of a normal toric variety defined over a field of positive characteristic is an isomorphism if and only if it is non-singular. We also extend a result by R. Toh-Yama which shows that higher Nash blowups do not give a one-step resolution of the $A_3$-singularity. These results were previously known only in characteristic zero.

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