On the Entropy and Letter Frequencies of Powerfree Words

We review the recent progress in the investigation of powerfree words, with particular emphasis on binary cubefree and ternary squarefree words. Besides various bounds on the entropy, we provide bounds on letter frequencies and consider their empirical distribution obtained by an enumeration of bina...

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Bibliographic Details
Main Authors: Manuela Heuer, Uwe Grimm
Format: Article
Language:English
Published: MDPI AG 2008-11-01
Series:Entropy
Subjects:
Online Access:http://www.mdpi.com/1099-4300/10/4/590/