Unindexed subshifts of finite type and a connecton to Thompsons groups

25.05.2022 11:30 - 13:00

J. Mitchell (U of St Andrews, UK)

I will give a brief introduction to subshifts of finite type defined by finite directed graphs. In particular I will mention a category of "digaphs and foldings" introduced by Jim Belk, Collin Bleak, and Peter Cameron which is useful for studying these systems. I will then discuss my recent work in building an analogous category in which isomorphisms don't necessarily preserve indexing and path length. This category gives us both more flexible notions of (strong) shift equivalence and a connection to automorphisms of Thompsons groups.

Organiser:

KGRC

Location:

SR 10, 1. Stock, Koling. 14-16, 1090 Wien

SR 10, 1. Stock, Koling. 14-16, 1090 Wien