The expressiveness of quasiperiodic and minimal shifts of finite type
26 Nov 2019
•
Durand Bruno
•
Romashchenko Andrei
We study multidimensional minimal and quasiperiodic shifts of finite type. We
prove for these classes several results that were previously known for the
shifts of finite type in general, without restriction...We show that some
quasiperiodic shifts of finite type admit only non-computable configurations;
we characterize the classes of Turing degrees that can be represented by
quasiperiodic shifts of finite type. We also transpose to the classes of
minimal/quasiperiodic shifts of finite type some results on subdynamics
previously known for the effective shifts without restrictions: every effective
minimal (quasiperiodic) shift of dimension $d$ can be represented as a
projection of a subdynamics of a minimal (respectively, quasiperiodic) shift of
finite type of dimension $d+1$.(read more)