Combinatorial Properties of primitive words with Non-primitive Product

Othman Echi, Adel Khalfallah, Dhaker Kroumi

Let $\mathcal{A}$ be an alphabet of size $n\ge 2$. In this paper, we give a complete description of primitive words $p\ne q$ over an alphabet $\mathcal{A}$ of size $n\ge 2$ such t…