Abstract
In this paper the concept of l-occurrences of patterns is introduced. Given a word w∈Σ*, we say that w contains a l-occurrence of a pattern p∈E* iff there exists a morphism h : E*→Σ* such that h(p) is a factor of w and |h(a)|≥l for all a∈Σ.
We prove that a pattern p is avoidable iff there exists an infinite binary word that contains no l-occurrence of p for some l.
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© 1991 Springer-Verlag Berlin Heidelberg
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Roth, P. (1991). l-occurrences of avoidable patterns. In: Choffrut, C., Jantzen, M. (eds) STACS 91. STACS 1991. Lecture Notes in Computer Science, vol 480. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0020786
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DOI: https://doi.org/10.1007/BFb0020786
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