Theoretical Computer Science
A generalization of Thue freeness for partial words
Theoretical Computer Science
Periodicity algorithms for partial words
MFCS'11 Proceedings of the 36th international conference on Mathematical foundations of computer science
Avoiding abelian squares in partial words
Journal of Combinatorial Theory Series A
Abelian square-free partial words
LATA'10 Proceedings of the 4th international conference on Language and Automata Theory and Applications
Hard counting problems for partial words
LATA'10 Proceedings of the 4th international conference on Language and Automata Theory and Applications
Periodicity algorithms and a conjecture on overlaps in partial words
Theoretical Computer Science
Repetition-freeness with Cyclic Relations and Chain Relations
Fundamenta Informaticae - Words, Graphs, Automata, and Languages; Special Issue Honoring the 60th Birthday of Professor Tero Harju
The hardness of counting full words compatible with partial words
Journal of Computer and System Sciences
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We propose an algorithm that given as input a full word w of length n , and positive integers p and d , outputs (if any exists) a maximal p -periodic partial word contained in w with the property that no two holes are within distance d . Our algorithm runs in O (nd ) time and is used for the study of freeness of partial words. Furthermore, we construct an infinite word over a five-letter alphabet that is overlap-free even after the insertion of an arbitrary number of holes, answering affirmatively a conjecture from Blanchet-Sadri, Mercaş, and Scott.