Stability in the energy space for chains of solitons of the   one-dimensional Gross-Pitaevskii equation
  We establish the stability in the energy space for sums of solitons of the one-dimensional Gross-Pitaevskii equation when their speeds are mutually distinct and distinct from zero, and when the solitons are initially well-separated and spatially ordered according to their speeds. 
Fabrice B\'ethuel (LJLL), Philippe Gravejat (CMLS-EcolePolytechnique),   Didier Smets (LJLL)
math.AP