Affiliation: | (1) Institut Girard Desargues, Université Claude Bernard – Lyon 43, boulevard du 11 Novembre 1918, 69622 Villeurbane Cedex, France;(2) Department of Mathematical Engineering, Universidad de Chile & Centre for Mathematical Modelling, UMR 2071, Universidad de Chile-CNRS, Casilla 170-3, Santiago 3, Chile |