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Topological conjugacy for sofic systems

Published online by Cambridge University Press:  19 September 2008

Masakazu Nasu
Affiliation:
Faculty of Engineering, Mie University, Tsu 514, Japan
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Abstract

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We prove that any topological conjugacy between subshifts is decomposed into the product of‘bipartite codes’, and obtain a natural generalization of Williams' theorem to sofic systems: two sofic systems are topologically conjugate iff the ‘representation matrices’ of the right [left] Krieger covers for them are ‘strong shift equivalent’ within right [left] Krieger covers; a similar result with respect to Fischer covers holds for transitive sofic systems.

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Type
Research Article
Copyright
Copyright © Cambridge University Press 1986