Abstract
In optics, the Sasa–Satsuma equation can be used to model ultrashort optical pulses. In this paper higher-order soliton solutions for the Sasa–Satsuma equation with zero boundary condition at infinity are analyzed by bar{partial } method. The explicit determinant form of a soliton solution which corresponds to a single p_{l}-th order pole is given. Besides the interaction related to one simple pole and the other one double pole is considered.
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