Combinatorial And Algebraic Properties Of Nilpotent  And Idempotent Conjugacy Classes: A Study In Partial  One-To-One Transformation Semigroups. JNAMP [Internet]. 2024 Oct. 23 [cited 2024 Oct. 23];68:129-40. Available from: https://nampjournals.org.ng/index.php/home/article/view/417