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Dynamical Systems and Analysis Seminar - Dan Rust

Dates:5 February 2024
Times:14:00 - 15:00
What is it:Seminar
Organiser:Department of Mathematics
Who is it for:University staff, External researchers, Current University students
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  • Department of Mathematics

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  • In category "Seminar"
  • In group "(Maths) Analysis and dynamical systems"
  • In group "(Maths) Maths seminar series"
  • By Department of Mathematics

Speaker: Dan Rust (The Open University)

Title: Random Pisot substitutions and their Rauzy fractals

Abstract: The Pisot conjecture is a long-standing open question concerning the dynamical spectrum of subshifts associated with Pisot substitutions. One formulation of the conjecture can be stated in terms of the so-called Rauzy fractal for the substitution, which is the attractor of a graph-directed iterated function system that can be written purely in terms of data coming from the substitution. Random substitutions generalise substitutions and can be used to interpolate between them, allowing properties of one substitution to inform us of properties of another. In this talk, I'll introduce Rauzy fractals for Pisot random substitutions and results concerning natural measures that can be defined on the attractor. By studying these measures, we're able to prove an analogue of a multi-tiling result for Rauzy fractals but in the random setting, hinting at potential new tools for tackling the Pisot conjecture using probabilistic methods.

Room: Frank Adams 1

Further information: https://personalpages.manchester.ac.uk/staff/yotam.smilansky/dynamics_analysis

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Frank Adams 1
Alan Turing Building
Manchester

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Yotam Smilansky

yotam.smilansky@manchester.ac.uk

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