Discrete Mathematics & Theoretical Computer Science
Volume 4 n° 2 (2001), pp. 273-290
| author: | Ján Maňuch |
|---|---|
| title: | Defect Effect of Bi-infinite Words in the Two-element Case |
| keywords: | defect effect, bi-infinite words |
| abstract: | Let X be a two-element set of words over a finite alphabet. If a bi-infinite word possesses two X-factorizations which are not shiftequivalent, then the primitive roots of the words in X are conjugates. Note, that this is a strict sharpening of a defect theorem for bi-infinite words stated in KMP. Moreover, we prove that there is at most one bi-infinite word possessing two different X-factorizations and give a necessary and sufficient conditions on X for the existence of such a word. Finally, we prove that the family of sets X for which such a word exists is parameterizable. |
| reference: | Ján Maňuch (2001), Defect Effect of Bi-infinite Words in the Two-element Case, Discrete Mathematics and Theoretical Computer Science 4, pp. 273-290 |
| bibtex: | For a corresponding BibTeX entry, please consider our BibTeX-file. |
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