Abstract
A systematic investigation to derive the Lax pair and group theoretical properties of deformed N-coupled nonlinear Schrödinger equations (N-coupled NLS) is presented. Exploiting the obtained Lie point symmetries, the corresponding similarity reductions for \(N =1\) and \(N = 2\) are derived separately and show that each of them passes the Painlevé property of ordinary differential equations. Exact solution of deformed coupled NLS equations is also derived wherever possible.
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Suresh Kumar, S., Balakrishnan, S. & Sahadevan, R. Integrability and Lie symmetry analysis of deformed \({\varvec{N}}\)-coupled nonlinear Schrödinger equations. Nonlinear Dyn 90, 2783–2795 (2017). https://doi.org/10.1007/s11071-017-3837-y
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DOI: https://doi.org/10.1007/s11071-017-3837-y