OP-00977 Open Unique Cartan subalgebra for Bernoulli crossed products OA · Bernoulli actions · Cartan subalgebras · group measure space construction · Peterson's operator algebra problems
OP-00978 Open Unique Cartan subalgebra for SLₙ(ℤ) acting on the n-torus OA · Cartan subalgebras · group measure space construction · Peterson's operator algebra problems · toral automorphisms
OP-00979 Open Unique Cartan subalgebras for groups with a nonzero ℓ²-Betti number OA · Cartan subalgebras · C-rigidity · ℓ²-Betti numbers · Peterson's operator algebra problems