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On the Quantized Dynamics of Factorial Languages (2018)

Barrett C, Kakariadis E.

Oxford University Press

In: Quarterly Journal of Mathematics

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Publikationsdatum: 2018-03-06

Beschreibung: We study local piecewise conjugacy of the quantized dynamics arising from factorial languages. We show that it induces a bijection between allowable words of same length and thus it preserves entropy. In the case of sofic factorial languages we prove that local piecewise conjugacy translates to unlabeled graph isomorphism of the follower set graphs. Moreover, it induces an unlabeled graph isomorphism between the Fischer covers of irreducible subshifts. We verify that local piecewise conjugacy does not preserve finite type nor irreducibility; but it preserves soficity. Moreover, it implies identification (up to a permutation) for factorial languages of type 1 if, and only if, the follower set function is one-to-one on the symbol set.

Print ISSN: 0033-5606

Digitale ISSN: 1464-3847

Thema: Mathematik

Publiziert von Oxford University Press

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