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Model theory of operator algebras III: elementary equivalence and II_1 factors

机译:算子代数III的模型理论:基本等价和II_1因子

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摘要

We use continuous model theory to obtain several results concerning isomorphisms and embeddings between II1 factors and their ultrapowers. Among other things, we show that for any II_1 factor M, there are continuum many nonisomorphic separable II_1 factors that have an ultrapower isomorphic to an ultrapower of M. We also give a poor man's resolution of the Connes Embedding Problem: there exists a separable II_1 factor such that all II_1 factors embed into one of its ultrapowers.
机译:我们使用连续模型理论来获得有关II1因素及其超能力之间的同构和嵌入的一些结果。除其他外,我们表明对于任何II_1因子M,都有许多非同构可分离的II_1因子,它们具有M的超幂同构的超幂同构。我们还给出了穷人对Connes嵌入问题的解决方案:存在一个可分离的II_1所有II_1因素都嵌入其超能力之一。

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