Department of Mathematics and Statistics, University of New Mexico, MSC03 2150 1 University of New Mexico, Albuquerque, NM 87131 United States ; Theoretical Division, Los ALamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545 United States
Earth and Environmental Sciences Division, Los ALamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545 United States
Department of Mathematics and Statistics, University of New Mexico, MSC03 2150 1 University of New Mexico, Albuquerque, NM 87131 United States
Theoretical Division, Los ALamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545 United States ; Department of Mechanical and Aerospace Engineering, University of California San Diego, 9500 Gillman Drive, La Jolla, CA 92093 United States