J. Ettayb, “On the operator equation ABA=ACA and its generalization on non-Archimedean Banach spaces”, Int. J. Maps Math., vol. 7, no. 2, pp. 224–235, Sep. 2024, Accessed: Sep. 12, 2026. Available: https://simadp.com/journalmim/article/view/7-2-7