10 citations · 20 across the 3 of their papers we have counts for
4 papers
Families of directed graphs and topological conjugacy of the associated Markov-Dyck shifts
Toshihiro Hamachi, Wolfgang Krieger
We describe structural properties of strongly connected finite directed graphs, that are invariants of the topological conjugacy of their Markov-Dyck shifts. For strongly connected…
Embedding subshifts of finite type into the Fibonacci-Dyck shift
Toshihiro Hamachi, Wolfgang Krieger
A necessary and sufficient condition is given for the existence of an embedding of an irreducible subshift of finite type into the Fibonacci-Dyck shift
A Construction of Subshifts and a Class of Semigroups
Toshihiro Hamachi, Wolfgang Krieger
Subshifts with property are constructed from a class of directed graphs. As special cases the Markov-Dyck shifts are shown to have property . The semigroups, that are as…
On Certain Subshifts and their Associated Monoids
Toshihiro Hamachi, Wolfgang Krieger
Within a subclass of monoids (with zero) a structural characterization is given of those that are associated to topologically transitive subshifts with Property (A).