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arXiv 1402.6520math.LO
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可分解序群

Decomposable ordered groups

Eliana Barriga, Alf Onshuus, Charles Steinhorn

摘要:

在\cite{OnSt}中引入了可分解的有序结构,发展了一个研究“有限维”全序结构的一般框架。本文继续这项工作,包括可分解的结构上的一个序群操作的结构上定义。在这个一般性水平上的主要结果断言任何这样的群都是超可解的,并且在拓扑上它同胚于o-极小群的乘积。然后,在O-极小序域$\mathcal R$中,在满足一些附加假设的条件下,在第3-7节中,我们完全分析了2维和3维的可定义序群的模可定义群同构。最后,这种分析是完善的,以提供一个完整的描述,这些群体的可定义的序群同构。

英文摘要:

Decomposable ordered structures were introduced in \cite{OnSt} to develop a general framework to study `finite-dimensional' totally ordered structures. This paper continues this work to include decomposable structures on which a ordered group operation is defined on the structure. The main result at this level of generality asserts that any such group is supersolvable, and that topologically it is homeomorphic to the product of o-minimal groups. Then, working in an o-minimal ordered field $\mathcal R$ satisfying some additional assumptions, in Sections 3-7 definable ordered groups of dimension 2 and 3 are completely analyzed modulo definable group isomorphism. Lastly, this analysis is refined to provide a full description of these groups with respect to definable ordered group isomorphism.

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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