Login New user?   Sohag Journal of Mathematics An International Journal   SJM Home   Submit an Article   Content   Forthcoming Papers   Subscription Author     Name : E. M. Elsayed Address : Department of Mathematics, King Abdulaziz University, Saudi Arabia.\\ Department of Mathematics, Mansoura University, Egypt. Email : emelsayed@mans.edu.eg Telephone :   Home   About us   News   Journals   Conferences Contact us Copyright naturalspublishing.com. All Rights Reserved