Institut de Mathématiques de Jussieu-Paris Rive Gauche
Seminaire « Structures Algebriques Ordonnees » DDG
Recherche bibliographiques en Geometrie Reelle sur Thamous
Cours du trimestre « Real Geometry » Institut Henri Poincaré 2005
Coopérations internationales
MathAmSud project (January 2023-december 2024) : Abstract theories of quadratic and hermitian forms, and real algebraic geometry. ATQHFRAG code 22-Math-11.
Contrat Bilateral Universite Paris 6 – University of Saskatchewan (Canada), Positive Polynomial and applications, 2006-20011.
Model theory and its applications : modnet, 1993-1996 and 2004-2008.
Real Algebraic and analytic Geometry, RAAG, 1994-1997 and 2002-2006
Procope cooperation with Dortmund (Germany), 1989-1994 and 1997-1999.