2 papers
math.DS2026
When is the Ellis semigroup a complete conjugacy invariant?
Johannes Kellendonk, Reem Yassawi
The Ellis semigroup of a topological dynamical system contains algebraic, topological and dynamical information. It is invariant under conjugacy. Despite this wealth of structure,…
math.DS2024
On non-tameness of the Ellis semigroup
Johannes Kellendonk
The Ellis semigroup of a dynamical system is tame if every element is the limit of a sequence (as opposed to a net) of homeomorphisms coming from the action. This topol…