arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0711.0122math.LO
收藏

超相依理论中的极小型

Minimal types in super-dependent theories

Assaf Hasson, Alf Onshuus

摘要:

本文给出了一个可定义在o-极小结构中的理论解释实封闭的场的充要几何条件。证明通过分析有限秩超玫瑰相关理论中的刺极小型。我们证明了这样的理论是协调的荆棘极小型,这样的类型是不稳定的,当且仅当每个非代数扩张的。我们的结论是,一个类型是稳定的,当且仅当它允许在刺最小稳定类型中进行协调。我们还证明了非平凡的刺极小稳定类型扩展了稳定集。

英文摘要:

We give necessary and sufficient geometric conditions for a theory definable in an o-minimal structure to interpret a real closed field. The proof goes through an analysis of thorn-minimal types in super-rosy dependent theories of finite rank. We prove that such theories are coordinatised by thorn-minimal types and that such a type is unstable if an only if every non-algebraic extension thereof is. We conclude that a type is stable if and only if it admits a coordinatisation in thorn-minimal stable types. We also show that non-trivial thorn-minimal stable types extend stable sets.

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。

↑