Bright-dark mixed -soliton solutions of the multi-component Mel'nikov system
arXiv:1706.06881 · doi:10.1515/zna-2017-0133
Abstract
By virtue of the KP hierarchy reduction technique, we construct the general bright-dark mixed -soliton solution to the multi-component Mel'nikov system comprised of multiple (say ) short-wave components and one long-wave component with all possible combinations of nonlinearities including all-positive, all-negative and mixed types. Firstly, the two-bright-one-dark (2-b-1-d) and one-bright-two-dark (1-b-2-d) mixed -soliton solutions in short-wave components of the three-component Mel'nikov system are derived in detail. Then we extend our analysis to the -component Mel'nikov system to obtain its general mixed -soliton solution. The formula obtained unifies the all-bright, all-dark and bright-dark mixed -soliton solutions. For the collision of two solitons, the asymptotic analysis shows that for a -component Mel'nikov system with , inelastic collision takes place, resulting in energy exchange among the short-wave components supporting bright solitons only if the bright solitons appear at least in two short-wave components. Whereas, the dark solitons in the short-wave components and the bright solitons in the long-wave component always undergo elastic collision which just accompanied by a position shift.
arXiv commentarXiv admin note: substantial text overlap with arXiv:1706.05498
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