Institution: | 1. Department of Applied Mathematics , University of Leeds , Leeds, LS2 9JT, UK A.M.Rucklidge@leeds.ac.uk;3. Department of Applied Mathematics and Theoretical Physics , University of Cambridge , Cambridge, CB3 0WA, UK;4. Departament de Matemàtica Aplicada IV , Universitat Politècnica de Catalunya (EPSEVG) , 08800 Vilanova, Spain |