The Lattice Sine-Gordon Equation as a Superposition Formula for an NLS-Type System
نویسندگان
چکیده
We treat the lattice sine-Gordon equation and two of its generalised symmetries as a compatible system. Elimination shifts from yields an integrable NLS-type An auto-Bäcklund transformation superposition formula for system is obtained by elimination down-shifted version. use formulae to calculate three elementary solutions.
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ژورنال
عنوان ژورنال: Symmetry Integrability and Geometry-methods and Applications
سال: 2021
ISSN: ['1815-0659']
DOI: https://doi.org/10.3842/sigma.2021.108