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arXiv 2103.14646math.AGmath.LOmath.NT
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弱分歧域上的丢番图问题

Diophantine problems over tamely ramified fields

Konstantinos Kartas

摘要:

假设奇点的奇点的分解具有一定的形式,证明了在所有特征上的弱分歧域的一个普遍存在的Ax-Kochen/Ershov原理.这专门用于已知的结果残留特征$0$和未分歧的混合特征。它还包括已知的$\mathbb{F}_p(\!(t)\!)$及其有限扩张的条件存在可判定性结果,由于Denef-Schoutens。另一方面,它也适用于无限分歧的设置,为我们提供了丰富的无限分歧扩展的$\mathbb{Q}_p$和$\mathbb{F}_p(\!(t)\!)$是存在可判定的。

英文摘要:

Assuming a certain form of resolution of singularities, we prove a general existential Ax-Kochen/Ershov principle for tamely ramified fields in all characteristics. This specializes to well-known results in residue characteristic $0$ and unramified mixed characteristic. It also encompasses the conditional existential decidability results known for $\mathbb{F}_p(\!(t)\!)$ and its finite extensions, due to Denef-Schoutens. On the other hand, it also applies to the setting of infinite ramification, providing us with an abundance of infinitely ramified extensions of $\mathbb{Q}_p$ and $\mathbb{F}_p(\!(t)\!)$ that are existentially decidable.

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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