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arXiv 2102.00814math.LO
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实封闭的值域中的可解释域及其一些推广

Interpretable fields in real closed valued fields and some expansions

Assaf Hasson, Ya'acov Peterzil

摘要:

设$\mathcal M=\langle K;O\rangle$是一个实封闭的值域,$k$是它的剩余域.我们证明了$\mathcal M$中的每个可解释域都定义同构于$K$、$K(\sqrt{-1})$、$k$或$k(\sqrt{-1})$。当$K$是$T$的一个模型,$T$是一个实封闭的域的o-极小幂有界扩张,$O$是一个$T$ -凸子环时,同样的结果也成立.证明是直接的,并没有利用已知的结果消除值域中的矩阵。

英文摘要:

Let $\mathcal M=\langle K;O\rangle$ be a real closed valued field and let $k$ be its residue field. We prove that every interpretable field in $\mathcal M$ is definably isomorphic to either $K$, $K(\sqrt{-1})$, $k$, or $k(\sqrt{-1})$. The same result holds when $K$ is a model of $T$, for $T$ an o-minimal power bounded expansion of a real closed field, and $O$ is a $T$-convex subring. The proof is direct and does not make use of known results about elimination of imaginaries in valued fields.

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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