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- Title
Inverse scattering transform for a nonlinear lattice equation under non-vanishing boundary conditions.
- Authors
Liu, Qin-Ling; Guo, Rui
- Abstract
Under investigation in this paper is the inverse scattering transform for a nonlinear lattice equation, which can be used to study the fluctuation of nonlinear optics and dynamics of anharmonic lattices. Symmetries, analyticities and asymptotic behaviors of eigenfunctions will be obtained in the direct scattering analysis to establish a suitable Riemann-Hilbert problem. The Riemann-Hilbert problem of the scattering data with simple poles will be constructed. In particular, by using the Laurent expansion and the generalized residue condition to solve the Riemann-Hilbert problem, the determinant representation of N-soliton solution for the equation will be presented. One-dark-soliton under non-vanishing boundary conditions will be displayed through some representative reflectionless potentials.
- Subjects
NONLINEAR equations; INVERSE scattering transform; RIEMANN-Hilbert problems; LATTICE dynamics; NONLINEAR optics
- Publication
Optical & Quantum Electronics, 2024, Vol 56, Issue 6, p1
- ISSN
0306-8919
- Publication type
Article
- DOI
10.1007/s11082-024-06886-7