Ha sido invitado en varias ocasiones a dictar Conferencias Plenarias e Inaugurales en prestigiosos Congresos Internacionales de Matemática (por ejemplo, 2nd "Italian-Latinoamerican Conference on Applied and Industrial Mathematics", Roma (1997), 29th "French National Congress on Numerical Analysis", Ardèche (1997), 4th World Congress on Computational Mechanics, Buenos Aires (1998), 1st International Congress on Asymptotic Analysis of Heterogeneous Media and of Structures, St.