Affiliation: | 1. Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany;2. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA;1. Mathematics of Computational Science Group, Dept. of Applied Mathematics, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands;2. School of Mathematics, University of Leeds, LS2 9JT, Leeds, United Kingdom |