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Theoret. Informatics Appl. 39, 641-650 (2005)
DOI: 10.1051/ita:2005033
Languages of finite words occurring infinitely many times in an infinite word
Klaus ThomsenInstitut for matematiske fag, Ny Munkegade, 8000 Aarhus C, Denmark; matkt@imf.au.dk
(Received December 30, 2003. Accepted October, 2004.)
Abstract
We give necessary and sufficient conditions for a language to be the language of finite words that occur infinitely many times in an infinite word.
Mathematics Subject Classification. 37B10, 68R15.
Key words: Formal languages -- infinite words -- infinite occurrence.
© EDP Sciences 2005
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