The minimal density of a letter in an infinite ternary square-free word is 883/3215.
Khalyavin, Andrey
Journal of Integer Sequences [electronic only], Tome 10 (2007), / Harvested from The Electronic Library of Mathematics
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Publié le : 2007-01-01
EUDML-ID : urn:eudml:doc:54275 
@article{05274228,
     title = {The minimal density of a letter in an infinite ternary square-free word is 883/3215.},
     journal = {Journal of Integer Sequences [electronic only]},
     volume = {10},
     year = {2007},
     zbl = {1140.11304},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05274228}
}

Khalyavin, Andrey. The minimal density of a letter in an infinite ternary square-free word is 883/3215.. Journal of Integer Sequences [electronic only], Tome 10 (2007) . http://gdmltest.u-ga.fr/item/05274228/