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The theorem of Fine and Wilf for relational periods

Published online by Cambridge University Press:  05 June 2008

Vesa Halava ,
Tero Harju  and
Tomi Kärki
Vesa Halava
Affiliation:
Department of Mathematics and Turku Centre for Computer Science, University of Turku, FIN-20014 Turku, Finland; vehalava@utu.fi; harju@utu.fi; topeka@utu.fi
Tero Harju
Affiliation:
Department of Mathematics and Turku Centre for Computer Science, University of Turku, FIN-20014 Turku, Finland; vehalava@utu.fi; harju@utu.fi; topeka@utu.fi
Tomi Kärki
Affiliation:
Department of Mathematics and Turku Centre for Computer Science, University of Turku, FIN-20014 Turku, Finland; vehalava@utu.fi; harju@utu.fi; topeka@utu.fi
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Abstract

We consider relational periods, where the relation is a compatibility relation on words induced by a relation on letters. We prove a variant of the theorem of Fine and Wilf for a (pure) period and a relational period.

Keywords

Periodpartial wordcompatibilityFineWilf.
Type
Research Article
Information
RAIRO - Theoretical Informatics and Applications , Volume 43 , Issue 2 , April 2009 , pp. 209 - 220
Copyright
© EDP Sciences, 2008

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