Personal Information Name : Elsayed Mohammed Mohammed Elsayed Surname: E. M. Elsayed Date of birth: 21/9/1978 Nationality: Egyptian Qualification: Ph. D. in pure mathematics (difference equation) from Faculty of Science, Mansoura University, Egypt (2006). Professor of Mathematics, Mathematics Department, Faculty of Science, King AbdulAziz University Address: King Abdulaziz University, Faculty of Science, Mathematics Department, P. O. Box 80203, Jeddah 21589, Saudi Arabia. E-mail: eelsayed@kau.edu.sa , emmelsayed@yahoo.com, emelsayed@mans.edu.eg Research interests: Difference Equations - Mathematical Modelling - Differential Equations LIST OF PUBLICATIONS: More than 320 papers Books : Elsayed M. Elsayed, Hamdy A. El-Metwally, Qualitative and Analytical Studies of Scalars and Systems of Difference Equations, LAP LAMBERT Academic Publishing , (2012). Conferences: (attended 10 Conferences ) Prizes and Awards: The prize of the best Ph. D. granted at Mansoura University, in the year ( 2006 – 2007 ). Thesis’s that have been supervised: ( 17 Ph. D. thesises and 9 M. Sc. Thesises ) Thesises that I have been reviewed: ( 21 Thesis ). I’m reviewer in the Mathematical Reviews which belongs to the AMS I’m Editorial Board of the journals (Research in Mathematics – and 40 journals ) I’m also a referee for many highly reputable journals (304 Journals and review more than 1500 papers).