Research output: Working paper

Date | Submitted - 27 Apr 2016 |
---|---|

Date | Accepted/In press (current) - 25 Mar 2017 |

Number of pages | 42 |

Original language | English |

We construct a self-affine sponge in R^3 whose dynamical dimension, i.e. the supremum of the Hausdorff dimensions of its invariant measures, is strictly less than its Hausdorff dimension. This resolves a long-standing open problem in the dimension theory of dynamical systems, namely whether every expanding repeller has an ergodic invariant measure of full Hausdorff dimension. More generally we compute the Hausdorff and dynamical dimensions of a large class of self-affine sponges, a problem that previous techniques could only solve in two dimensions. The Hausdorff and dynamical dimensions depend continuously on the iterated function system defining the sponge, implying that sponges with a dimension gap represent a nonempty open subset of the parameter space.

## Programme Grant-New Frameworks in metric Number Theory

Project: Research project (funded) › Research

Find related publications, people, projects, datasets and more using interactive charts.