Cuspon and regular gap solitons between three dispersion curves

  title={Cuspon and regular gap solitons between three dispersion curves},
  author={Roger Grimshaw and Boris A. Malomed},
A general model is introduced which describes a system with cubic nonlinearities, in a situation when the linear dispersion relation has three branches which nearly intersect. The system consists of two waves with a strong linear coupling between them, to which a third wave is coupled. This model has are two gaps in its linear spectrum. A nonlinear analysis is performed for zero-velocity solitons, disregarding selfphase-modulation. We nd that there simultaneously exist two di erent families of… CONTINUE READING

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