14 citations · 14 across the 2 of their papers we have counts for
5 papers
Rich square-free words
Jetro Vesti
A word w is rich if it has |w|+1 many distinct palindromic factors, including the empty word. A word is square-free if it does not have a factor uu, where u is a non-empty word. Pe…
The most unbalanced words and majorization
Jetro Vesti
A finite word is balanced if for every equal-length factors and of every cyclic shift of we have . This new class of finite words we…
Extensions of rich words
Jetro Vesti
In [X. Droubay et al, Episturmian words and some constructions of de Luca and Rauzy, Theoret. Comput. Sci. 255 (2001)], it was proved that every word w has at most |w|+1 many disti…
On a question of Hof, Knill and Simon on palindromic substitutive systems
Tero Harju, Jetro Vesti, Luca Q. Zamboni
In a 1995 paper, Hof, Knill and Simon obtain a sufficient combinatorial criterion on the hull of the potential of a discrete Schrödinger operator which guarantees purely singul…
On Kaluza's sign criterion for reciprocal power series
Árpád Baricz, Jetro Vesti, Matti Vuorinen
T. Kaluza has given a criterion for the signs of the power series of a function that is the reciprocal of another power series. In this note the sharpness of this condition is expl…