Affiliation: | 1. Mathematics Institute, Zeeman Building, University of Warwick, Coventry CV4 7AL, UK;2. Institute of Applied Analysis and Numerical Simulation, University of Stuttgart, Pfaffenwaldring 57 70569 Stuttgart, Germany;3. International Research Institute of Stavanger, P.O. Box 8046 N-4068 Stavanger, Norway;4. Department for Applied Mathematics, Albert-Ludwigs-University Freiburg, Hermann-Herder-Str. 10, 79104 Freiburg, Germany |