Dynamical Systems Seminar

Title: Restrictions on the automorphism group of a fixed subshift
Speaker: Samuel Petite
Speaker Info: University of Picardie
Brief Description:
Special Note:

A subshift is a closed set of sequences on a finite alphabet and invariant by the shift. An automorphism is an homeomorphism commuting with the shift map. Actually, it is a cellular automaton. It follows that the set of the automorphisms preserving a subshift is a countable group generally hard to describe. We will present in this talk a survey on different restrictions on these groups for zero entropy subshifts.
Date: Tuesday, January 30, 2018
Time: 4:00pm
Where: Lunt 104
Contact Person: Prof. Bryna Kra
Contact email: kra@math.northwestern.edu
Contact Phone: 847-491-5567
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