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On shape changing solutions of a generalized inhomogeneous Hirota equation

Author

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  • Sun, Yeping
  • Yong, Xuelin
  • Gao, Jianwei

Abstract

In a recent series of papers, Kavitha et al. [2,3,4] solved three inhomogeneous nonlinear Schrödinger (INLS) integro-differential equation under the influence of a variety of nonlinear inhomogeneities and nonlocal damping by the modified extended tangent hyperbolic function method. They obtained several kinds of exact solitary solutions accompanied by the shape changing property. In this paper, we demonstrate that most of exact solutions derived by them do not satisfy the nonlinear equations and consequently are wrong. Furthermore, we study a generalized Hirota equation with spatially-inhomogenetiy and nonlocal nonlinearity. Its integrability is explored through Painlevé analysis and N-soliton solutions are obtained based on the Hirota bilinear method. Effects of linear inhomogeneity on the profiles and dynamics of solitons are also investigated graphically.

Suggested Citation

  • Sun, Yeping & Yong, Xuelin & Gao, Jianwei, 2015. "On shape changing solutions of a generalized inhomogeneous Hirota equation," Chaos, Solitons & Fractals, Elsevier, vol. 77(C), pages 101-110.
  • Handle: RePEc:eee:chsofr:v:77:y:2015:i:c:p:101-110
    DOI: 10.1016/j.chaos.2015.05.008
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