Groups, Modules, and Model Theory - Surveys and Recent Developments

Groups, Modules, and Model Theory - Surveys and Recent Developments
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群、模块和模型理论 - 调查和最新发展

DOI:
10.1007/978-3-319-51718-6_17
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发表时间:
2017
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通讯作者:
Glass A
Glass A
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作者:
Glass A

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如果置换群的非恒等元素不能写成不相交支持的非恒等元素的乘积,我们称其为不可约的。我们证明,子格子群 确实可能不具有不可约元素,并且在 α<βin 对的集合上仍然具有传递性。这回答了第一作者在会议演讲“ℓ-排列群的一阶理论”中提出的问题。
We call a non-identity element of a permutation group irreducible if it cannot be written as a product of non-identity elements of disjoint support. We show that it is indeed possible for a sublattice subgroup ofto have no irreducible elements and still be transitive on the set of pairsα<βin. This answers a question raised in “The first-order theory ofℓ-permutation groups”, a Conference talk by the first author.