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Palindromes in circular words
Journal article   Open access   Peer reviewed

Palindromes in circular words

J. Simpson
Theoretical Computer Science, Vol.550, pp.66-78
2014
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Abstract

There is a very short and beautiful proof that the number of distinct non-empty palindromes in a word of length n is at most n. In this paper we show, with a very complicated proof, that the number of distinct non-empty palindromes with length at most n in a circular word of length n is less than 5n/3. For n divisible by 3 we present circular words of length n containing 5n/3-2 distinct palindromes, so the bound is almost sharp. The paper finishes with some open problems.

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Citation topics
9 Mathematics
9.28 Pure Maths
9.28.534 Dynamical Systems
Web Of Science research areas
Computer Science, Theory & Methods
ESI research areas
Computer Science
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