3 citations · 3 across the 2 of their papers we have counts for
4 papers
The Polynomial Endomorphisms of Graph Algebras
Rune Johansen, Adam P. W. Sørensen, Wojciech Szymański
We investigate polynomial endomorphisms of graph -algebras and Leavitt path algebras. To this end, we define and analyze the coding graph corresponding to each such an endomor…
Flow equivalence of sofic beta-shifts
Rune Johansen
The Fischer, Krieger, and fiber product covers of sofic beta-shifts are constructed and used to show that every strictly sofic beta-shift is -sofic. Flow invariants based on the…
Is Every Irreducible Shift of Finite Type Flow Equivalent to a Renewal System?
Rune Johansen
Is every irreducible shift of finite type flow equivalent to a renewal system? For the first time, this variation of a classic problem formulated by Adler is investigated, and seve…
On Flow Equivalence of Sofic Shifts
Rune Johansen
The flow equivalence of sofic shifts is examined using results about the structure of the corresponding covers. A canonical cover generalising the left Fischer cover to arbitrary s…