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arXiv 0912.4887math.AG
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关于混合特征中动机整合的一点注记

A note on motivic integration in mixed characteristic

Johannes Nicaise, Julien Sebag

摘要:

我们引入了商的Grothendieck环的品种,确定类的普遍同胚品种。我们证明了标准实现态射因子通过这个商,并证明了它是混合特征的形式概形和刚性簇上动机整合理论的正确值环.本说明是一份详细的调查文件的摘录,该文件将在题为“动机整合及其与模型论和非阿基米德几何的相互作用”的会议记录中发表(ICMS,2008年)。

英文摘要:

We introduce a quotient of the Grothendieck ring of varieties by identifying classes of universally homeomorphic varieties. We show that the standard realization morphisms factor through this quotient, and we argue that it is the correct value ring for the theory of motivic integration on formal schemes and rigid varieties in mixed characteristic. The present note is an excerpt of a detailed survey paper which will be published in the proceedings of the conference "Motivic integration and its interactions with model theory and non-archimedean geometry" (ICMS, 2008).

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