Institution: | 1. CMAP Ecole Polytechnique, 91128 Palaiseau, France;2. POEMS, UMR 7231, CNRS-INRIA-ENSTA, INRIA Rocquencourt, Domaine de Voluceau, BP105, Le Chesnay, France;3. Departamento de Matemática Aplicada, Facultad de Matemáticas, USC, 15782 Santiago de Compostela, A Coruña, Spain;4. EADS-CCR, BP 76, 92152 Suresnes, France |