Prof. Dr. Riyad Delfi Ali, a lecturer in the Mathematics Department at the College of Education for Pure Sciences at the University of Karbala, participated as a member of the committee discussing a doctoral thesis at the University of Babylon / College of Education for Pure Sciences by the student (Raghad Hamid Abbas), tagged with the title (Generaliztion of Topological Concepts Vai Cluster Spaces). The discussion ended with the committee supporting the valuable information in the thesis. The thesis was accepted with an excellent.