Aloyce, M. M. ., Kumar, S. ., & Mpimbo, M. . (2021). On Scalar Multiples of Hypercyclic Operators on Non-normable and Separable Fréchet Spaces. Tanzania Journal of Science, 45(3), 431–438. Retrieved from https://tjs.udsm.ac.tz/index.php/tjs/article/view/211