Rigidity of Continuous Coboundaries |
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Authors: | Quas Anthony N |
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Institution: | Statistical Laboratory, Department of Pure Mathematics and Mathematical Statistics 16 Mill Lane, Cambridge CB2 1SB |
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Abstract: | We consider the functional equation FoTF=f, where T isa measure-preserving transformation and f is a continuous function.We show that if there is an L function F which satisfies thisequation, then F is constrained to satisfy a number of regularityconditions, and, in particular, if T is a one-sided Bernoullishift, then we show that there is a continuous function F satisfyingthis equation. We show that this is not the case for the two-sidedshift. 1991 Mathematics Subject Classification 28D05, 58F11. |
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