Problem 139

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Are polynomial growth foliations hyperfinite? Is $W^{ws} $ on $\Sigma ^+_{\{0,1\}} $ Borel hyperfinite?



Yes, [1]


I don't recall that I got this problem (foliations of polynomial growth) from Rufus, but it must have been in the air at the time. Caroline Series


  1. [series1979foliations] Series C.  1979.  Foliations of polynomial growth are hyperfinite. Israel Journal of Mathematics. 34:245–258.

I don't know, but I am sure that some people know.

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