Republic of Iraq

Ministry of Higher Education

and Scientific Research

University of Al-Qadisiya

College of Computer Science

and Mathematics

(Department of Mathematics)

  On Covering Properties By

Using coc-r-Open Set

A Thesis Submitted to the Council of the College of  Computer Science and  Mathematics, University of Al-Qadisiya as a partial Fulfillment of the Requirements for the Degree of Master of Science  in Mathematics

By

Fadhel attala shneef zakrooty

Supervised By

Asst. Prof.Dr. Raad Aziz Hussain

1. H. 1438 A.D. 2017