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D0L sequence equivalence is in P for fixed alphabets

Published online by Cambridge University Press:  13 December 2007

Keijo Ruohonen
Keijo Ruohonen*
Affiliation:
Institute of Mathematics, Tampere University of Technology, 33101 Tampere, Finland; keijo.ruohonen@tut.fi
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Abstract

A new algorithm is presented for the D0L sequence equivalence problem which, when the alphabets are fixed, works in time polynomial in the rest of the input data. The algorithm uses a polynomial encoding of words and certain well-known properties of $\mathbb{Z}$ -rational sequences.

Keywords

D0L systemequivalence problempolynomial-time algorithm

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Type
Research Article
Information
RAIRO - Theoretical Informatics and Applications , Volume 42 , Issue 2 , April 2008, pp. 361 - 374
Copyright
© EDP Sciences, 2007

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