2016/11/16 by Dvorakova, Lubomira, Florian, Josef
#68R15 #Combinatorics (math.CO) #FOS: Mathematics
paper · doi:10.48550/arxiv.1611.05482
Generalized pseudostandard words were introduced by de Luca and De Luca in 2006. In comparison to the palindromic and pseudopalindromic closure, only little is known about the generalized pseudopalindromic closure and the associated generalized pseudostandard words. We present a counterexample to Conjecture 43 from a paper by Blondin Massé et al. that estimated the complexity of binary generalized pseudostandard words as \mathcal C(n) ≤ 4n for all sufficiently large n. We conjecture that \mathcal C(n)<6n for all n ∈ \mathbb N.