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Ergodic Theory of Kusuoka Measures
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Mathematics.
2016 (English)In: Journal of Fractal Geometry, ISSN 2308-1309Article in journal (Refereed) Accepted
Abstract [en]

In the analysis on self-similar fractal sets, the Kusuoka measure plays an important role (cf. \cite{kusuoka2}, \cite{kajino}, \cite{str3}). Here we investigate the Kusuoka measure from an ergodic theoretic viewpoint, seen as an invariant measure on a symbolic space. Our investigation shows that the Kusuoka measure generalizes Bernoulli measures and their properties to higher dimensions of an underlying finite dimensional vector space. Our main result is that the transfer operator on functions has a spectral gap when restricted to a certain Banach space that contains the H\"older continuous functions, as well as the highly discontinuous $g$-function associated to the Kusuoka measure. As a consequence, we obtain exponential decay of correlations. In addition, we provide some explicit rates of convergence for a family of generalized Sierpi\'nski gaskets.

Place, publisher, year, edition, pages
European Mathematical Society Publishing House, 2016.
National Category
Mathematical Analysis
Research subject
URN: urn:nbn:se:uu:diva-282280OAI: diva2:916827
Available from: 2016-04-04 Created: 2016-04-04 Last updated: 2016-04-06Bibliographically approved

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Öberg, Anders
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