Multi-component structure of nonlinear excitations in systems with   length-scale competition
  We investigate the properties of nonlinear excitations in different types of soliton bearing systems with long-range dispersive interaction. We show that length-scale competition in such systems universally results in a multi-component structure of nonlinear excitations and can lead to a new type of multistability: coexistence of different nonlinear excitations at the same value of the spectral parameter (i.e., velocity in the case of anharmonic lattices or frequency in nonlinear Schroedinger models). 
Peter L. Christiansen, Yuri B. Gaididei, Franz G. Mertens, and Serge   F. Mingaleev