Characterization of quasi idempotent in semigroups of full contraction mappings. Proc. Nig. Soc. Physi. Sci. Conf. [Internet]. 2024 Mar. 28 [cited 2024 Nov. 23];1(1):88. Available from: https://flayoophl.com/journals/index.php/pnspsc/article/view/88