Multiple-pole solutions to a semidiscrete modified Korteweg-de Vries equation. (English) Zbl 1421.35328

Summary: Multiple-pole soliton solutions to a semidiscrete modified Korteweg-de Vries equation are derived by virtue of the Riemann-Hilbert problem with higher-order zeros. A different symmetry condition is introduced to build the nonregular Riemann-Hilbert problem. The simplest multiple-pole soliton solution is presented. The dynamics of the solitons are studied.


35Q53 KdV equations (Korteweg-de Vries equations)
35Q15 Riemann-Hilbert problems in context of PDEs
35C08 Soliton solutions
Full Text: DOI


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