Seminar

Regularity of aperiodic sequences and their associated subshifts

Fractal Geometry and Dynamics

29 September 14:00 - 14:50

Arne Mosbach - Universität Bremen

We recall some well-known notions of regularity for aperiodic sequences and their associated subshifts, namely repetitive, repulsive and power free. We will introduce generalisations of these quantities and explore relations between them, focusing on a class of aperiodic sequences stemming from Grigorchuk group of intermediate growth, and if time permits also Sturmian sequences.
Organizers
Kenneth J. Falconer
University of St Andrews
Maarit Järvenpää
University of Oulu
Antti Kupiainen
University of Helsinki
Francois Ledrappier
University of Notre Dame
Pertti Mattila
University of Helsinki

Program
Contact

Maarit Järvenpää

maarit.jarvenpaa@oulu.fi

Other
information

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