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cs.DM2019
Characteristic Parameters and Special Trapezoidal Words
Alma D'Aniello, Alessandro De Luca
Following earlier work by Aldo de Luca and others, we study trapezoidal words and their prefixes, with respect to their characteristic parameters and (length of shortest un…
cs.DM2016
On Christoffel and standard words and their derivatives
Alma D'Aniello, Aldo de Luca, Alessandro De Luca
We introduce and study natural derivatives for Christoffel and finite standard words, as well as for characteristic Sturmian words. These derivatives, which are realized as inverse…