Model theoretic connected components of groups

Model theoretic connected components of groups
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群的理论连通分量模型

DOI:
10.1007/s11856-011-0067-8
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发表时间:
2007
影响因子:
1
通讯作者:
Jakub Gismatullin
Jakub Gismatullin
中科院分区:
数学2区
文献类型:
--
作者:
Jakub Gismatullin

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我们提供了模型理论连接组成部分的一般性阐述。我们表明,如果G组具有nip,则存在具有有界索引(定理5.3)的G的最小不变(在某些小集合)的子组中。该结果从[21]延伸了Shelah定理。在这种情况下,我们还考虑了某些环(包括无限场)的乘法和加性基团。
We give a general exposition of model theoretic connected components of groups. We show that if a group G has NIP, then there exists the smallest invariant (over some small set) subgroup of G with bounded index (Theorem 5.3). This result extends a theorem of Shelah from [21]. We consider also in this context the multiplicative and the additive groups of some rings (including infinite fields).
关于 NIP 和不变测度
DOI: 10.4171/jems/274
发表时间: 2011
影响因子: 2.6
作者:
Pillay A
通讯作者: Pillay A