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Publicado en línea: 08 nov 2019
Páginas: 1 - 21
Recibido: 05 may 2019
Aceptado: 09 jun 2019
DOI: https://doi.org/10.2478/mjpaa-2019-0001
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© 2019 Mohammed Abdellaoui, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Abdellaoui, Mohammed
University of Fez, Faculty of Sciences Dhar El Mahraz, Laboratory LAMA, Department of MathematicsMorocco