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arxiv: math/0609273 · v3 · submitted 2006-09-11 · 🧮 math.DS

Entropy Theory for Cross Sections

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keywords entropyactioncrossableactionsambientamenableanswer
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We define the notion of entropy for a cross section of an action of continuous amenable group and relate it to the entropy of the ambient action. As a result, we are able to answer a question of J.P. Thouvenot about completely positive entropy actions.

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