Department of Mathematics [Riyadh] Laboratoire200801

College of Sciences, P.O. Box 2455, Riyadh 11451Arabie saoudite

 King Saud University [Riyadh] Institution302265

KSUKing Saud University, Riyadh 12372ROR : https://ror.org/02f81g417Arabie saouditehttp://ksu.edu.sa/en/