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arXiv 1503.02018math.ACmath.NT
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诺特环在Witt向量中的嵌入问题

An embedding problem of Noetherian rings into the Witt vectors

Kazuma Shimomoto

摘要:

证明了混合特征$p>0$中完备局部Noether整环的整扩张域的存在性,并证明了该整环与Frobenius映射具有不同的性质.我们通过Witt向量构造所需的扩张域和极大代数扩张的方法证明了主要结果。值得注意的是,所得到的代数与同调图和$p$ -adic Hodge理论中的环有着深刻的联系.

英文摘要:

The aim of this article is to prove some results on the existence of an integral extension domain of a complete local Noetherian domain in mixed characteristic $p>0$ having certain distinguished properties with respect to the Frobenius map. We prove the main results by constructing required extension domains via Witt vectors and the method of maximal étale extensions. It is worth remarking that the resulting algebras have deep connections with the homological conjectures and the rings in $p$-adic Hodge theory.

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