Lyndon words and singular factors of Sturmian words
نویسندگان
چکیده
منابع مشابه
Lyndon Words and Singular Factors of Sturmian Words
Two diierent factorizations of the Fibonacci innnite word were given independently in 10] and 6]. In a certain sense, these factorizations reveal a self-similarity property of the Fibonacci word. We rst describe the intimate links between these two factorizations. We then propose a generalization to characteristic sturmian words. R esum e. Deux factorisations du mot de Fibonacci ont et e donn e...
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We prove some new combinatorial properties of the set PER of all words w having two periods p and q which are coprimes and such that w = p + q 2 [4,3]. We show that aPERb U {a, b} = St n Lynd, where St is the set of the finite factors of all infinite Sturmian words and Lynd is the set of the Lyndon words on the alphabet {a, b}. It is also shown that aPERb U {a, b} = CP, where CP is the set of C...
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A primitive word w is a Lyndon word if w is minimal among all its conjugates with respect to some lexicographic order. A word w is bordered if there is a nonempty word u such that w = uvu for some word v. A right extension of a word w of length n is a word wu where all factors longer than n are bordered. A right extension wu of w is called trivial if there exists a positive integer k such that ...
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Motivated by applications to string processing, we introduce variants of the Lyndon factorization called inverse Lyndon factorizations. Their factors, named inverse Lyndon words, are in a class that strictly contains anti-Lyndon words, that is Lyndon words with respect to the inverse lexicographic order. We prove that any nonempty word w admits a canonical inverse Lyndon factorization, named IC...
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ژورنال
عنوان ژورنال: Theoretical Computer Science
سال: 1999
ISSN: 0304-3975
DOI: 10.1016/s0304-3975(98)00249-7