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.
@article{ITA_2011__45_3_311_0, author = {Karhum\"aki, Juhani and Puzynina, Svetlana}, title = {Locally catenative sequences and Turtle graphics}, journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications}, volume = {45}, year = {2011}, pages = {311-330}, doi = {10.1051/ita/2011104}, mrnumber = {2836492}, zbl = {1228.68042}, language = {en}, url = {http://dml.mathdoc.fr/item/ITA_2011__45_3_311_0} }
Karhumäki, Juhani; Puzynina, Svetlana. Locally catenative sequences and Turtle graphics. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 45 (2011) pp. 311-330. doi : 10.1051/ita/2011104. http://gdmltest.u-ga.fr/item/ITA_2011__45_3_311_0/
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