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arXiv 1207.0977math.GRmath.LO
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关于紧单群超积的正规子群格

On the lattice of normal subgroups in ultraproducts of compact simple groups

Abel Stolz, Andreas Thom

摘要:

证明了紧致单非阿贝尔群的超积的正规子群格是分配的。在有限单群或有界秩的紧致单李群的超积的情况下,证明了正规子群的集合是由包含线性序的。

英文摘要:

We prove that the lattice of normal subgroups of ultraproducts of compact simple non-abelian groups is distributive. In the case of ultraproducts of finite simple groups or compact connected simple Lie groups of bounded rank the set of normal subgroups is shown to be linearly ordered by inclusion.

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