RAIRO-Theor. Inf. Appl.
Volume 45, Number 3, July-September 2011
|Page(s)||311 - 330|
|Published online||22 August 2011|
Locally catenative sequences and Turtle graphics
University of Turku, Department of Mathematics, 20014 Turku, Finland
Turku Centre for Computer Science, 20014 Turku, Finland. firstname.lastname@example.org
2 Sobolev Institute of Mathematics, Novosibirsk 630090, Russia. email@example.com
Accepted: 18 March 2011
Motivated by striking properties of the well known Fibonacci word we consider pictures which are defined by this word and its variants via so-called turtle graphics. Such a picture can be bounded or unbounded. We characterize when the picture defined by not only the Fibonacci recurrence, but also by a general recurrence formula, is bounded, the characterization being computable.
Mathematics Subject Classification: 68R15
Key words: Combinatorics on words / locally catenative sequences / turtle graphics / Fibonacci word
© EDP Sciences, 2011
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