Title: Non-expansiveness in Z^2 symbolic dynamics
Speaker: John Franks
Speaker Info: Northwestern University
Brief Description:
Special Note:
Abstract:
We consider Z^2-subshifts, i.e. closed Z^2 invariant subsets of A^{Z^2} where A is a finite alphabet. Our focus is on how the geometry of nonexpansive subspaces controls the propagation of information in such systems.Date: Thursday, May 03, 2018