Given an ergodic measured discrete equivalence relation 𝓡 and an ergodic subrelation 𝒮 ⊂ 𝓡 of finite index, C. Sutherland showed that they are represented by the cross products 𝓟 ⋊αG and 𝓟 ⋊αH of ...
In this paper, we shall consider the problem: let X be a (reduced) analytic space and A a nowhere dense analytic set in X. And let R be a proper equivalence relation on A such that the quotient space ...
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