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Balance Properties and Distribution of Squares in Circular Words

  • Authors: Mantaci, R; Mantaci, S; Restivo, A
  • Publication year: 2008
  • Type: Capitolo o Saggio
  • Key words: Combinatoria delle Parole, Parole Sturmiane, parole circolari, Parole Bilanciate
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We study balance properties of circular words over alphabets of size greater than two. We give some new characterizations of balanced words connected to the Kawasaki-Ising model and to the notion of derivative of a word. Moreover we consider two different generalizations of the notion of balance, and we find some relations between them. Some of our results can be generalised to non periodic infinite words as well.