"Algorithmique Numéique Appliquée aux Problèmes Industriels", ULCO, May 15-16, 2003, Calais, France.
"Matrix Analysis and Applications"; 15-19 Octobre, Luminy, Marseille France 2007.
"9th IMACS Conference Lille, France, 17-20 Mars 2008: www-lmpa.univ-littoral.fr/IMACS09/;
"Numerical Analysis and Scientific Computing with Applications" (NASCA09) , Agadir, 18-22 Mai 2009. www-lmpa.univ-littoral.fr/NASCA09/.
"Inverse Problems, Computation and Applications", Luminy, Marseille, 29 Mai- 4 Juin 2010. www-lmpa.univ-littoral.fr/IPCA2010/.
"10th IMACS Conference", Marrakech, Maroc, 18-21 MAI, 2011. www-lmpa.univlittoral.fr/IMACS10/. `
"Rencontres mathéatiques-Informatique-Automatique pour l'optimisation", Valenciennes Octobre, 2012.
"Numerical Analysis and Scientific Computing with Applications" (NASCA13) Calais, 23-25 June 2013 : www-lmpa.univ-littoral.fr/NASCA13/.
"Special session (Matrix Computation with Applications) in MOCASIM", Marrakech, Maroc, 19-22 Novembre 2014.
" Matrix Scientific Computing (MSC16) Calais, France, May 2016.
"Numerical Linear Algebra with Applications (NL2A)", CIRM, Luminy, 24-28 Octobre 2016, http://scientific-events.weebly.com/1500.html.
"RENcontre en Algèbre Linéaire Numérique Amiens- Calais ", LAMFA (UPJV, Amiens), May 30, 2017.
" Matrix Scientific Computing (MSC17) ", December 29, 2017, ENS, Rabat, Morocco.
"Numerical Analysis and Scientific Computing with Applications" (NASCA18) Kalamata, Greece, 2-6 July 2018, http://nasca18.math.uoa.gr/.
"Mathematical Modeling with Applications (M2A19)"Rabat, Morocco 1--4 April, 2019, https://m2a19.univ-littoral.fr/
"A One Day Approximation Meeting" Calais, September, 19, 2019.
"Mathematical Modeling of Complex Systems (M2CS)Marrakech, Morocco 13--16 April, 2020, https://m2cs.univ-littoral.fr/
"A One Day Doctoral NAMLA, UM6P Benguérir, Morocco, November 22, 2022.
"Winter School on Domain Decomposition and Krylov Subspace Methods for PDEs and Ill-Posed Problems, UM6P Benguérir, Morocco, February 27–March 3, 2023
"Numerical Analysis and Scientific Computing with A pplications (nasca23)Athens, Greece 3--6 July, 2023, https://nasca23.univ-littoral.fr/