Nondegenerate and degenerate soliton solutions and their dynamics in two-component complex coupled integrable dispersionless equations

Bitong Zhang and Ben Gao

Mathematics and Computers in Simulation (MATCOM), 2026, vol. 246, issue C, 154-174

Abstract: Novel N-soliton solutions of the two-component complex coupled integrable dispersionless (CID) equations are analytically constructed via the Hirota bilinear method, encompassing both nondegenerate forms and degenerate forms with bright–dark alternation properties. Numerical simulations reveal distinct types of soliton solutions. Specifically, nondegenerate solitons manifest as double-peaked structures, and degenerate solitons can exhibit characteristics of either conventional solitons or kink-solitons, depending on the parameters. On this basis, we conduct a detailed analysis of the soliton dynamics of the two-component complex CID equations and discuss the features and interactions of soliton solutions under different unit polarization vector and complex wave number parameters. Furthermore, the asymptotic analysis method is applied to study the interactions of degenerate and nondegenerate two-soliton solutions.

Keywords: The two-component complex CID equations; Hirota bilinear method; N-soliton solutions; Kink-soliton solutions; Nondegenerate solitons; Asymptotic analysis (search for similar items in EconPapers)
Date: 2026
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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:246:y:2026:i:c:p:154-174

DOI: 10.1016/j.matcom.2026.01.031

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