Popa Superrigidity and countable Borel equivalence relations
نویسنده
چکیده
We present some applications of Popa’s Superrigidity Theorem to the theory of countable Borel equivalence relations. In particular, we show that the universal countable Borel equivalence relation E∞ is not essentially free.
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ورودعنوان ژورنال:
- Ann. Pure Appl. Logic
دوره 158 شماره
صفحات -
تاریخ انتشار 2009