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Hyperbolization of cocycles by isometries of the Euclidean space

Published online by Cambridge University Press:  05 December 2012

MARIO PONCE*
Affiliation:
Facultad de Matemáticas, Universidad Católica de Chile, Casilla 306, Santiago 22, Chile (email: [email protected])

Abstract

We study hyperbolized versions of cohomological equations that appear with cocycles by isometries of the Euclidean space. These (hyperbolized versions of) equations have a unique continuous solution. We concentrate on the question whether or not these solutions converge to a genuine solution to the original equation, and in what sense we can use them as good approximative solutions. The main advantage of considering solutions to hyperbolized cohomological equations is that they can be easily described, since they are global attractors of a naturally defined skew-product dynamics. We also include some technical results about twisted Birkhoff sums and exponential averaging.

Type
Research Article
Copyright
©2012 Cambridge University Press 

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