Dr.Muzahim Bani Tahir AL-Zubaidi. Work Address: Faculty of Humanities and Sciences-Department of Mathematics & Sciences. Academic Title: Associate Professor, Academic degrees: Ph. D. (1992), Budapest – Hungary, M.Sc.(1979), Baghdad – Iraq, B.Sc. (1971), Baghdad – Iraq. Date of joining AU: 3-9-2002. Teaching experience : more than 35 years.Adminestration experience: Head of Department of Math.&Sciences –Ministry of Education/ Curriculum and books –Iraq, Coordinator of the Department of Mathematics/College of Education-University of Baghdad, Vice Department head of Mathematics &S cinces-Faculty of Education & Basic Scince-AU-AL-Ain,Member of the association of Mathematics & Physics-Iraq. Published Research: A- Books: Books of Mathematics-Secondary School-Iraq., Translated Some Mathematics University books from English To Arabic.B-Articles: On equiconvergence of Riesz means of eigenfunction expansion., On the Riesz means expansion by Riesz bases formed by eigenfunctions for ordinary differential operator of 4-th order . Conferences: Participant all Mathday conferences in UAE from The 1stUAE MATHEMATICS DAY 2003 until the last one The 15thUAE MATHEMATICS DAY,2017.