Affiliation: | Department of Mathematics, University of Bergen, Johs. Brunsgt. 12, N-5008 Bergen, Norway ; CASC, Lawrence Livermore National Laboratory, Livermore, California 94551 Gunnar E. Fladmark ; Department of Mathematics, University of Bergen, Johs. Brunsgt. 12, N-5008 Bergen, Norway Magne S. Espedal ; Department of Mathematics, University of Bergen, Johs. Brunsgt. 12, N-5008 Bergen, Norway |