Richard, Christoph and Grimm, Uwe
(2004).
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Abstract
We enumerate all ternary length-1 square-free words, which are words avoiding squares of words up to length 1, for 1<=24. We analyse the singular behaviour of the corresponding generating functions. This leads to new upper entropy bounds for ternary square-free words. We then consider ternary square-free words with
fixed letter densities, thereby proving exponential growth for certain ensembles with various letter densities. We derive consequences for the free energy and entropy of
ternary square-free words.
| Item Type: | Journal Article |
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| ISSN: | 1077-8926 |
| Extra Information: | Preprint version math.CO/0302302 available from http://arxiv.org.abs.math.CO/0302302 |
| Keywords: | combinatorics on words; square-free words |
| Academic Unit/Department: | Faculty of Science, Technology, Engineering and Mathematics (STEM) > Mathematics and Statistics Faculty of Science, Technology, Engineering and Mathematics (STEM) |
| Item ID: | 5835 |
| Depositing User: | Users 13 not found. |
| Date Deposited: | 09 Nov 2006 |
| Last Modified: | 02 Aug 2016 15:34 |
| URI: | http://oro.open.ac.uk/id/eprint/5835 |
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