, Volume 196, Issue 1, pp 235-272

A certain synchronizing property of subshifts and flow equivalence

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Abstract

We will study a certain synchronizing property of subshifts called λ-synchronization. The λ-synchronizing subshifts form a large class of irreducible subshifts containing irreducible sofic shifts. We prove that the λ-synchronization is invariant under flow equivalence of subshifts. The λ-synchronizing K-groups and the λ-synchronizing Bowen-Franks groups are studied and proved to be invariant under flow equivalence of λ-synchronizing subshifts. They are new flow equivalence invariants for λ-synchronizing subshifts.