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math.DS2016
Homoclinic invariants of ergodic actions
Valery V. Ryzhikov
We consider a family of homoclinic groups and Gordin's type invariants of measure-preserving actions, state their connections with factors, full groups, ranks, rigidity, multiple m…
math.DS2016
On the isomorphism of tensor powers of ergodic flows
Valery V. Ryzhikov
The following question due to Thouvenot is well-known in ergodic theory. Let and be automorphisms of a probability space and let be isomorphic to $T \otimes…