不同值字段中的可解释字段
Interpretable Fields in Various Valued Fields
摘要：
设$\mathcal{K}=(K,v,\ldots)$是特征$0$的非平凡值域的dp-极小展开式，$\mathcal{F}$是可在$\mathcal{K}$中解释的无限域.假设$\mathcal{K}$是以下之一：（i）$V$ -最小，（ii）幂有界$T$ -凸，或（iii）$P$ -最小（在（iii）可定义函数的一般可微性中另外假设）。则$\mathcal{F}$可定义同构于有限扩张$K$，或在情形（i）和（ii）中同构于它的剩余域。特别是，在$\mathbb{Q}_p$中可解释的每一个无限域都定义同构于$\mathbb{Q}_p$的有限扩张，回答了皮莱的一个问题。利用Johnson关于dp-极小域的工作和这里所发展的机器，我们得出结论：如果$\mathcal{K}$是一个无限dp-极小纯域，那么在$\mathcal{K}$中可定义的每一个域都可定义同构于$K$的有限扩张。该证明避免了消除$\mathcal{K}$中的冗余，而是将问题简化为$K$的某些特殊的冗余。
英文摘要：
Let $\mathcal{K}=(K,v,\ldots)$ be a dp-minimal expansion of a non-trivially valued field of characteristic $0$ and $\mathcal{F}$ an infinite field interpretable in $\mathcal{K}$. Assume that $\mathcal{K}$ is one of the following: (i) $V$-minimal, (ii) power bounded $T$-convex, or (iii) $P$-minimal (assuming additionally in (iii) generic differentiability of definable functions). Then $\mathcal{F}$ is definably isomorphic to a finite extension $K$ or, in cases (i) and (ii), its residue field. In particular, every infinite field interpretable in $\mathbb{Q}_p$ is definably isomorphic to a finite extension of $\mathbb{Q}_p$, answering a question of Pillay's. Using Johnson's work on dp-minimal fields and the machinery developed here, we conclude that if $\mathcal{K}$ is an infinite dp-minimal pure field then every field definable in $\mathcal{K}$ is definably isomorphic to a finite extension of $K$. The proof avoids elimination of imaginaries in $\mathcal{K}$ replacing it with a reduction of the problem to certain distinguished quotients of $K$.
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。
