### Hausdorff dimension of self-similar measures with complicated overlaps

Ergodic Theory and Dynamical Systems Seminar

21st March 2019, 2:00 pm – 3:00 pm

Howard House, 4th Floor Seminar Room

In this talk, we consider a family of self-similar iterated function system (IFS), where at least two maps share the same fixed point. Since the maps, which share the same fixed point, commute, this results complicated overlaps, and typically the weak separation condition does not hold. The dimension of the attractor is well understood by taking sufficiently large subsystems. However, this cannot be applied in order to determine the dimension of invariant measures. Here, we present a method based on the previous results of Feng and Hu, and Kamaltudinov and Tetenov, which allows us to calculate the dimension of self-similar measures for almost every parameters. This is a joint work with Edina Szvak.

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