Authors
Mohamed Laghzal
Laboratory LAMA Department of Mathematics Faculty of Sciences, Dhar El Mahraz University, Atlas Fez, Morocco
Abdelouahed El Khalil
Department of Mathematics and Statistics College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh
My Driss Morchid Alaoui
AMNEA Group Department of Mathematics Faculty of Sciences and Technologies, Moulay Ismail University, Errachidia, Morocco
Abdelfattah Touzani
Abdelfattah.touzani@usmba.ac.ma
Laboratory LAMA Department of Mathematics Faculty of Sciences, Dhar El Mahraz University, Atlas Fez, Morocco