On Words with the Zero Palindromic Defect

@inproceedings{Pelantov2017OnWW,
  title={On Words with the Zero Palindromic Defect},
  author={Edita Pelantov{\'a} and {\vS}těp{\'a}n Starosta},
  booktitle={WORDS},
  year={2017}
}
We study the set of finite words with zero palindromic defect, i.e., words rich in palindromes. This set is factorial, but not recurrent. We focus on description of pairs of rich words which cannot occur simultaneously as factors of a longer rich word. 
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This paper proves the inequality for every finite word v with |v| ≥ n + 1 and v(n + 1) closed under reversal, where w is an infinite word whose set of factors is open under reversal.
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