19 citations · 95 across the 38 of their papers we have counts for
49 papers
The extended future cover and desynchronization of sofic shifts
Klaus Thomsen
The paper describes a cover of the future cover of a sofic shift which is canonical in the same way as the future cover itself. In some cases the cover is isomorphic to the future…
On the future cover of a sofic shift
Klaus Thomsen
The paper contains a new proof of the theorem by Krieger which establishes the canonicity of the future cover of a sofic shift. In addition the paper describes a method to produce…
Factorizable embeddings and the period of an irreducible sofic shift
Brian Marcus, Tom Meyerovitch, Klaus Thomsen +1
Generalizing a result of MacDonald we give necessary and sufficient conditions for an arbitrary subshift to embed into an irreducible sofic shift factoring through a given cover by…
Equilibria when the temperature goes to zero
Klaus Thomsen
We present methods to construct flows with varying sets of KMS infinity states on a given simple unital AF-algebra. It follows, for example, that for any pair D and E of non-empty…
On weights, traces and K-theory
Klaus Thomsen
It is shown that the pairing of the K00 group of a C*-algebra with the densely defined traces of the algebra can be extended to a pairing with the densely defined weights. For trac…
An introduction to KMS weights
Klaus Erik Thomsen
' The theory of KMS weights is based on a theorem of Combes and a theorem of Kustermans. In applications to KMS states for flows on a unital -algebra the relation to KMS weigh…