TY - BOOK AU - Abbeer Abbasi (17971) TI - Contributions to the study of semidetached LA-semigroups U1 - 510 PY - 2018/// CY - Islamabad PB - (unpublished) KW - LA semigroup KW - Communicative semigroup KW - Semidetached ideal KW - Fuzzy substructure KW - Interior ideal KW - FBSH N1 - Submitted in fulfillment of the requirements for the degree of Master of Philosophy in Mathematics to the Faculty of Basic Sciences and Humanities; Includes bibliographical references; Thesis supervisor: Dr. Noor Rehman; Thesis (M.Phil)--Riphah International University, 2018 ER -