N. H. ALSHAMRANI1,2, A. M. ELAIW1,3, H. BATARFI1
AND A. D. HOBINY1
1Department of Mathematics
King Abdulaziz University
Jeddah, 21589 Saudi Arabia
E-mail: {nalshmrane; aelaiwksu.edu.sa; hbatarfi; ahobany}@kau.edu.sa
2Department of Mathematics
University of Jeddah
Jeddah, 21589 Saudi Arabia
E-mail: nhalshamrani@uj.edu.sa
3Department of Mathematics
Al-Azhar University
Assiut, 71524 Egypt