RAIRO-Theor. Inf. Appl.
Volume 44, Number 1, January-March 2010Special issue dedicated to the 12th "Journées Montoises d'Informatique Théorique"
|Page(s)||113 - 124|
|Published online||11 February 2010|
Infinite words containing squares at every position
Department of Mathematics and Statistics,
University of Winnipeg, 515 Portage Avenue, Winnipeg,
Manitoba R3B 2E9, Canada; firstname.lastname@example.org, email@example.com
Richomme asked the following question: what is the infimum of the real numbers α > 2 such that there exists an infinite word that avoids α-powers but contains arbitrarily large squares beginning at every position? We resolve this question in the case of a binary alphabet by showing that the answer is α = 7/3.
Mathematics Subject Classification: 68R15.
Key words: Infinite words / power-free words / squares.
© EDP Sciences, 2010
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.