Co-induction in dynamical systems


Dooley, A. H. and Zhang, G., 2012. Co-induction in dynamical systems. Ergodic Theory and Dynamical Systems, 32 (03), pp. 919-940.

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If a countable amenable group G contains an infinite subgroup Γ, one may define, from a measurable action of Γ, the so-called co-induced measurable action of G. These actions were defined and studied by Dooley, Golodets, Rudolph and Sinelsh’chikov. In this paper, starting from a topological action of Γ, we define the co-induced topological action of G. We establish a number of properties of this construction, notably, that the G-action has the topological entropy of the Γ-action and has uniformly positive entropy (completely positive entropy, respectively) if and only if the Γ-action has uniformly positive entropy (completely positive entropy, respectively). We also study the Pinsker algebra of the co-induced action.


Item Type Articles
CreatorsDooley, A. H.and Zhang, G.
DepartmentsFaculty of Science > Mathematical Sciences
ID Code32434


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