11 yield for the KdV equation a1 5 0.23,a2 5 0.20, l 5 21.06, m 5 20.94, D1 5 0.10, D2 5 20.11, k1 ... Thecorresponding parameters for the KdV equations arecalculated using (A.15) and the scaling described in theappendix to 5 20.12, 5 0.12, l 5 0.9, m 5a