Dejean's conjecture and letter frequency

被引:2
|
作者
Chalopin, Jeremie [1 ]
Ochem, Pascal
机构
[1] Univ Aix Marseille 1, CNRS, CMI, LIF, F-13453 Marseille, France
来源
关键词
D O I
10.1051/ita:2008013
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We prove two cases of a strong version of Dejean's conjecture involving extremal letter frequencies. The results are that there exist an infinite (5/4(+))-free word over a 5 letter alphabet with letter frequency (1)(6) and an infinite ((6)(+)(5))-free word over a 6 letter alphabet with letter frequency (1)(5).
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页码:477 / 480
页数:4
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