11 citations · 22 across the 8 of their papers we have counts for
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math.DS2011★ 4 cited
The Borel complexity of von Neumann equivalence
Inessa Epstein, Asger Tornquist
We prove that for a countable discrete group containing a copy of the free group $\F_n$, for some , as a normal subgroup, the equivalence relations of conjug…
math.OA2011★ 3 cited
Turbulence, orbit equivalence, and the classification of nuclear C*-algebras
Ilijas Farah, Asger Tornquist, Andrew S. Toms
We bound the Borel cardinality of the isomorphism relation for nuclear simple separable C*-algebras: It is turbulent, yet Borel reducible to the action of the automorphism group of…