A note about words which coincide except in one position
arXiv:1709.02430 · doi:10.1016/j.tcs.2019.04.005
Abstract
In this short note, we show that a result about words which coincide except in one position given as an exercise in Lothaire's Algebraic Combinatorics on Words is false. Moreover, we derive a modified statement which allows us to fix the proof of a theorem which originally used the result of this exercise.
3 pages