Dynamical Systems Seminar

Title: Sturmian subshifts and PSL2(Q) equivalence
Speaker: Scott Schmieding
Speaker Info: Penn State University
Brief Description:
Special Note:

Sturmian subshifts are certain codings of irrational rotations on the circle which play an important role in symbolic dynamics. The groups PSL2(Z), and more generally PSL2(K) for a subring K of the reals, act on the set of irrational numbers via Mobius transformations, and we will discuss the following question: if alpha and beta are in the same PSL2(K)-orbit, how are the dynamics of the associated Sturmian subshifts related? We'll present some new results for K=Q, joint work with Christopher-Lloyd Simon.
Date: Tuesday, April 23, 2024
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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