TY - BOOK AU - Kiran Shehzadi (26406) TI - Topological structures of rough sets based on hyperrings U1 - 513.83 PY - 2021/// CY - Islamabad PB - (unpublished) KW - Topology KW - Hypestructure KW - Hyperrings KW - Hyperideal KW - Hypergroupoid KW - DBS N1 - Submitted in fulfilment of the requirements for the degree of Master of Philosophy in Mathematics to the Department of Basic Sciences and Humanities; Includes bibliographical references; Thesis supervisor: Dr. Naveed Yaqoob; Thesis (M.Phil.)--Riphah International University, 2021 ER -