• Corpus ID: 3147866

On Operations Preserving Primitivity of Partial Words with One Hole

@inproceedings{BlanchetSadri2011OnOP,
  title={On Operations Preserving Primitivity of Partial Words with One Hole},
  author={F. Blanchet-Sadri and Sarah A. Nelson and Amelia Tebbe},
  booktitle={AFL},
  year={2011}
}
The notion of a primitive word, one that is not a power of another word, is useful in many areas including coding theory, combinatorics on words, formal language theory, and text algorithms. The proportion of such words turns out to be very high. We investigate operations that preserve the primitivity of partial words with one hole, or words that have an undefined position. As a result, all primitive binary partial words with on e hole of length up to 11 can be generated. 
2 Citations
On Del-Robust Primitive Partial Words with One Hole
TLDR
A special class of words is characterized, del-robust primitive partial words with one hole, that remains primitive on deletion of any symbol or the hole, and it is proved that the language of non-del-robUST primitive partial Words with one Hole is not context-free.
On Exchange-Robust and Subst-Robust Primitive Partial Words
TLDR
It is shown that the language of non-exchangerobust primitive partial words is not context-free over a binary alphabet and of substituting a symbol by another symbol from the alphabet.

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